AJCN North Carolina Research Campus
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
 QUICK SEARCH:   [advanced]


     


This Article
Right arrow Full Text (PDF)
Right arrow Purchase Article
Right arrow View Shopping Cart
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Prentice, A.
Right arrow Articles by Cole, T. J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Prentice, A.
Right arrow Articles by Cole, T. J.
Agricola
Right arrow Articles by Prentice, A.
Right arrow Articles by Cole, T. J.

American Journal of Clinical Nutrition, Vol 60, 837-842, Copyright © 1994 by The American Society for Clinical Nutrition, Inc


ORIGINAL RESEARCH COMMUNICATIONS

Uncritical use of bone mineral density in absorptiometry may lead to size-related artifacts in the identification of bone mineral determinants

A Prentice, TJ Parsons and TJ Cole
MRC Dunn Nutrition Centre, Cambridge, UK.

Epidemiological studies of bone mineral determinants rely heavily on measurements made with absorptiometric techniques such as single-photon absorptiometry and dual-energy x-ray absorptiometry. In general, absorptiometric data are expressed as areal densities (bone mineral density, BMD), obtained by dividing bone mineral content (BMC) by bone area or width (BA, BW). This size correction assumes that BMC and BA (BW) are directly proportional to one another, such that a 1% change in BA (BW) is matched by a 1% change in BMC. This is rarely the case, and the exact relationship depends on the population group, skeletal site, body size, instrumentation, and scanning conditions. Size adjustment determined by using predefined indexes, such as BMD and body mass index (BMI, wt/ht2), may fail to correct BMC fully for bone and body size, and may lead to spurious associations with other size-related variables such as calcium intake, energy expenditure, and grip strength. A general approach to size adjustment is described, in which BA (BW), weight, and height are incorporated in all regression models of BMC. Although BMD plays a valuable role in fracture-risk assessment and clinical management, we advocate that its use in epidemiological research be discontinued.


This article has been cited by other articles:


Home page
PediatricsHome page
L. B. Sardinha, F. Baptista, and U. Ekelund
Objectively Measured Physical Activity and Bone Strength in 9-Year-Old Boys and Girls
Pediatrics, September 1, 2008; 122(3): e728 - e736.
[Abstract] [Full Text] [PDF]


Home page
J. Appl. Physiol.Home page
M. R. Forwood
Physical activity and bone development during childhood: insights from animal models
J Appl Physiol, July 1, 2008; 105(1): 334 - 341.
[Abstract] [Full Text] [PDF]


Home page
J. Nutr.Home page
S. A. Atkinson, G. P. McCabe, C. M. Weaver, S. A. Abrams, and K. O. O'Brien
Are Current Calcium Recommendations for Adolescents Higher than Needed to Achieve Optimal Peak Bone Mass? The Controversy
J. Nutr., June 1, 2008; 138(6): 1182 - 1186.
[Full Text] [PDF]


Home page
LupusHome page
V. Lilleby
Review: Bone status in juvenile systemic lupus erythematosus
Lupus, August 1, 2007; 16(8): 580 - 586.
[Abstract] [PDF]


Home page
Am. J. Clin. Nutr.Home page
C. S Riedt, Y. Schlussel, N. von Thun, H. Ambia-Sobhan, T. Stahl, M P. Field, R. M Sherrell, and S. A Shapses
Premenopausal overweight women do not lose bone during moderate weight loss with adequate or higher calcium intake
Am. J. Clinical Nutrition, April 1, 2007; 85(4): 972 - 980.
[Abstract] [Full Text] [PDF]


Home page
PediatricsHome page
V. Gilsanz and T. Wren
Assessment of Bone Acquisition in Childhood and Adolescence
Pediatrics, March 1, 2007; 119(Supplement_2): S145 - S149.
[Abstract] [Full Text] [PDF]


Home page
Arch. Dis. Child.Home page
K. A Ward, R. L Ashby, S. A Roberts, J. E Adams, and M Zulf Mughal
UK reference data for the Hologic QDR Discovery dual-energy x ray absorptiometry scanner in healthy children and young adults aged 6-17 years
Arch. Dis. Child., January 1, 2007; 92(1): 53 - 59.
[Abstract] [Full Text] [PDF]


Home page
J. Clin. Endocrinol. Metab.Home page
M. Sciannamblo, G. Russo, D. Cuccato, G. Chiumello, and S. Mora
Reduced Bone Mineral Density and Increased Bone Metabolism Rate in Young Adult Patients with 21-Hydroxylase Deficiency
J. Clin. Endocrinol. Metab., November 1, 2006; 91(11): 4453 - 4458.
[Abstract] [Full Text] [PDF]


Home page
BMJHome page
T. Winzenberg, K. Shaw, J. Fryer, and G. Jones
Effects of calcium supplementation on bone density in healthy children: meta-analysis of randomised controlled trials
BMJ, October 14, 2006; 333(7572): 775.
[Abstract] [Full Text] [PDF]


Home page
Am. J. Clin. Nutr.Home page
C. J Prynne, G. D Mishra, M. A O'Connell, G. Muniz, M A. Laskey, L. Yan, A. Prentice, and F. Ginty
Fruit and vegetable intakes and bone mineral status: a cross sectional study in 5 age and sex cohorts.
Am. J. Clinical Nutrition, June 1, 2006; 83(6): 1420 - 1428.
[Abstract] [Full Text] [PDF]


Home page
J. Clin. Endocrinol. Metab.Home page
C. Lubrano-Berthelier, B. Dubern, J.-M. Lacorte, F. Picard, A. Shapiro, S. Zhang, S. Bertrais, S. Hercberg, A. Basdevant, K. Clement, et al.
Melanocortin 4 Receptor Mutations in a Large Cohort of Severely Obese Adults: Prevalence, Functional Classification, Genotype-Phenotype Relationship, and Lack of Association with Binge Eating
J. Clin. Endocrinol. Metab., May 1, 2006; 91(5): 1811 - 1818.
[Abstract] [Full Text] [PDF]


Home page
J. Nutr.Home page
L. M. Fiorito, D. C. Mitchell, H. Smiciklas-Wright, and L. L. Birch
Girls' Calcium Intake Is Associated with Bone Mineral Content During Middle Childhood
J. Nutr., May 1, 2006; 136(5): 1281 - 1286.
[Abstract] [Full Text] [PDF]


Home page
Am. J. Clin. Nutr.Home page
L. M. Jarjou, A. Prentice, Y. Sawo, M A. Laskey, J. Bennett, G. R Goldberg, and T. J Cole
Randomized, placebo-controlled, calcium supplementation study in pregnant Gambian women: effects on breast-milk calcium concentrations and infant birth weight, growth, and bone mineral accretion in the first year of life
Am. J. Clinical Nutrition, March 1, 2006; 83(3): 657 - 666.
[Abstract] [Full Text] [PDF]


Home page
J. Clin. Endocrinol. Metab.Home page
R. D. Murray, J. E. Adams, and S. M. Shalet
A Densitometric and Morphometric Analysis of the Skeleton in Adults with Varying Degrees of Growth Hormone Deficiency
J. Clin. Endocrinol. Metab., February 1, 2006; 91(2): 432 - 438.
[Abstract] [Full Text] [PDF]


Home page
Eur J EndocrinolHome page
F. Galluzzi, S. Stagi, R. Salti, S. Toni, E. Piscitelli, G. Simonini, F. Falcini, and F. Chiarelli
Osteoprotegerin serum levels in children with type 1 diabetes: a potential modulating role in bone status
Eur. J. Endocrinol., December 1, 2005; 153(6): 879 - 885.
[Abstract] [Full Text] [PDF]


Home page
J. Clin. Endocrinol. Metab.Home page
A. Prentice, F. Ginty, S. J. Stear, S. C. Jones, M. A. Laskey, and T. J. Cole
Calcium Supplementation Increases Stature and Bone Mineral Mass of 16- to 18-Year-Old Boys
J. Clin. Endocrinol. Metab., June 1, 2005; 90(6): 3153 - 3161.
[Abstract] [Full Text] [PDF]


Home page
Am. J. Clin. Nutr.Home page
K. Zhu, X. Du, C. T Cowell, H. Greenfield, B. Blades, T. A Dobbins, Q. Zhang, and D. R Fraser
Effects of school milk intervention on cortical bone accretion and indicators relevant to bone metabolism in Chinese girls aged 10-12 y in Beijing
Am. J. Clinical Nutrition, May 1, 2005; 81(5): 1168 - 1175.
[Abstract] [Full Text] [PDF]


Home page
Am. J. Clin. Nutr.Home page
C. Molgaard, B. L Thomsen, and K. F Michaelsen
Effect of habitual dietary calcium intake on calcium supplementation in 12-14-y-old girls
Am. J. Clinical Nutrition, November 1, 2004; 80(5): 1422 - 1427.
[Abstract] [Full Text] [PDF]


Home page
Am. J. Clin. Nutr.Home page
A. Arabi, H. Tamim, M. Nabulsi, J. Maalouf, H. Khalife, M. Choucair, R. Vieth, and G. El-Hajj Fuleihan
Sex differences in the effect of body-composition variables on bone mass in healthy children and adolescents
Am. J. Clinical Nutrition, November 1, 2004; 80(5): 1428 - 1435.
[Abstract] [Full Text] [PDF]


Home page
Am. J. Clin. Nutr.Home page
H. J Kalkwarf, J. C Khoury, J. Bean, and J. G Elliot
Vitamin K, bone turnover, and bone mass in girls
Am. J. Clinical Nutrition, October 1, 2004; 80(4): 1075 - 1080.
[Abstract] [Full Text] [PDF]


Home page
J. Appl. Physiol.Home page
A. V. Rowlands, D. K. Ingledew, S. M. Powell, and R. G. Eston
Interactive effects of habitual physical activity and calcium intake on bone density in boys and girls
J Appl Physiol, October 1, 2004; 97(4): 1203 - 1208.
[Abstract] [Full Text] [PDF]


Home page
J. Clin. Endocrinol. Metab.Home page
F. Yap, W. Hogler, J. Briody, B. Moore, R. Howman-Giles, and C. T. Cowell
The Skeletal Phenotype of Men with Previous Constitutional Delay of Puberty
J. Clin. Endocrinol. Metab., September 1, 2004; 89(9): 4306 - 4311.
[Abstract] [Full Text] [PDF]


Home page
PediatricsHome page
M. Horlick, J. Wang, R. N. Pierson Jr., and J. C. Thornton
Prediction Models for Evaluation of Total-Body Bone Mass With Dual-Energy X-Ray Absorptiometry Among Children and Adolescents
Pediatrics, September 1, 2004; 114(3): e337 - e345.
[Abstract] [Full Text] [PDF]


Home page
Am J Sports MedHome page
T. L. N. Jarvinen, J. T. Nurmi, and H. Sievanen
Bone Density and Insertion Torque as Predictors of Anterior Cruciate Ligament Graft Fixation Strength
Am. J. Sports Med., September 1, 2004; 32(6): 1421 - 1429.
[Abstract] [Full Text] [PDF]


Home page
NEJMHome page
M. B. Leonard, H. I. Feldman, J. Shults, B. S. Zemel, B. J. Foster, and V. A. Stallings
Long-Term, High-Dose Glucocorticoids and Bone Mineral Content in Childhood Glucocorticoid-Sensitive Nephrotic Syndrome
N. Engl. J. Med., August 26, 2004; 351(9): 868 - 875.
[Abstract] [Full Text] [PDF]


Home page
Am. J. Clin. Nutr.Home page
M. B Leonard, J. Shults, B. A Wilson, A. M Tershakovec, and B. S Zemel
Obesity during childhood and adolescence augments bone mass and bone dimensions
Am. J. Clinical Nutrition, August 1, 2004; 80(2): 514 - 523.
[Abstract] [Full Text] [PDF]


Home page
J. Clin. Endocrinol. Metab.Home page
P. S. Coates, J. D. Fernstrom, M. H. Fernstrom, P. R. Schauer, and S. L. Greenspan
Gastric Bypass Surgery for Morbid Obesity Leads to an Increase in Bone Turnover and a Decrease in Bone Mass
J. Clin. Endocrinol. Metab., March 1, 2004; 89(3): 1061 - 1065.
[Abstract] [Full Text] [PDF]


Home page
J. Clin. Endocrinol. Metab.Home page
S. Arpadi, M. Horlick, and E. Shane
Metabolic Bone Disease in Human Immunodeficiency Virus-Infected Children
J. Clin. Endocrinol. Metab., January 1, 2004; 89(1): 21 - 23.
[Full Text] [PDF]


Home page
J. Clin. Endocrinol. Metab.Home page
S. Mora, I. Zamproni, S. Beccio, R. Bianchi, V. Giacomet, and A. Vigano
Longitudinal Changes of Bone Mineral Density and Metabolism in Antiretroviral-Treated Human Immunodeficiency Virus-Infected Children
J. Clin. Endocrinol. Metab., January 1, 2004; 89(1): 24 - 28.
[Abstract] [Full Text] [PDF]


Home page
J. Clin. Endocrinol. Metab.Home page
W. Hogler, J. Briody, B. Moore, S. Garnett, P. W. Lu, and C. T. Cowell
Importance of Estrogen on Bone Health in Turner Syndrome: A Cross-Sectional and Longitudinal Study Using Dual-Energy X-Ray Absorptiometry
J. Clin. Endocrinol. Metab., January 1, 2004; 89(1): 193 - 199.
[Abstract] [Full Text] [PDF]


Home page
Ann Rheum DisHome page
S M F Pluijm, H W van Essen, N Bravenboer, A G Uitterlinden, J H Smit, H A P Pols, and P Lips
Collagen type I {alpha}1 Sp1 polymorphism, osteoporosis, and intervertebral disc degeneration in older men and women
Ann Rheum Dis, January 1, 2004; 63(1): 71 - 77.
[Abstract] [Full Text] [PDF]


Home page
J. Clin. Endocrinol. Metab.Home page
C. A. Benbassat, V. Eshed, M. Kamjin, and Z. Laron
Are Adult Patients with Laron Syndrome Osteopenic? A Comparison between Dual-Energy X-Ray Absorptiometry and Volumetric Bone Densities
J. Clin. Endocrinol. Metab., October 1, 2003; 88(10): 4586 - 4589.
[Abstract] [Full Text] [PDF]


Home page
Am. J. Clin. Nutr.Home page
R. P Heaney
Bone mineral content, not bone mineral density, is the correct bone measure for growth studies
Am. J. Clinical Nutrition, August 1, 2003; 78(2): 350 - 351.
[Full Text] [PDF]


Home page
Am. J. Clin. Nutr.Home page
M. K. Lehtonen-Veromaa, T. T Mottonen, I. O Nuotio, J. S. Viikari, K. M. Irjala, and A. E Leino
Reply to RP Heaney
Am. J. Clinical Nutrition, August 1, 2003; 78(2): 351 - 352.
[Full Text] [PDF]


Home page
Am. J. Clin. Nutr.Home page
S. J Stear, A. Prentice, S. C Jones, and T. J Cole
Effect of a calcium and exercise intervention on the bone mineral status of 16-18-y-old adolescent girls
Am. J. Clinical Nutrition, April 1, 2003; 77(4): 985 - 992.
[Abstract] [Full Text] [PDF]


Home page
CMAJHome page
J. P. Brown
Osteoporosis in children: 2002 guidelines do not apply
Can. Med. Assoc. J., March 18, 2003; 168(6): 676 - 676.
[Full Text] [PDF]


Home page
CMAJHome page
S. P. Taback
Osteoporosis in children: 2002 guidelines do not apply
Can. Med. Assoc. J., March 18, 2003; 168(6): 675 - 676.
[Full Text] [PDF]


Home page
J. Nutr.Home page
R. A. M. Dhonukshe-Rutten, M. Lips, N. de Jong, M. J. M. Chin A Paw, G. J. Hiddink, M. van Dusseldorp, L. C. P. G. M. de Groot, and W. A. van Staveren
Vitamin B-12 Status Is Associated with Bone Mineral Content and Bone Mineral Density in Frail Elderly Women but Not in Men
J. Nutr., March 1, 2003; 133(3): 801 - 807.
[Abstract] [Full Text] [PDF]


Home page
Arch. Dis. Child.Home page
I M van der Sluis, M A J de Ridder, A M Boot, E P Krenning, S M P F de Muinck Keizer-Schrama, and Z. Mughal
Reference data for bone density and body composition measured with dual energy x ray absorptiometry in white children and young adults
Arch. Dis. Child., October 1, 2002; 87(4): 341 - 347.
[Abstract] [Full Text] [PDF]


Home page
Am. J. Clin. Nutr.Home page
B. Dibba, A. Prentice, M. Ceesay, M. Mendy, S. Darboe, D. M Stirling, T. J Cole, and E. M. Poskitt
Bone mineral contents and plasma osteocalcin concentrations of Gambian children 12 and 24 mo after the withdrawal of a calcium supplement
Am. J. Clinical Nutrition, September 1, 2002; 76(3): 681 - 686.
[Abstract] [Full Text] [PDF]


Home page
Arch. Dis. Child. Fetal Neonatal Ed.Home page
J Faerk, B Peitersen, S Petersen, and K F Michaelsen
Bone mineralisation in premature infants cannot be predicted from serum alkaline phosphatase or serum phosphate
Arch. Dis. Child. Fetal Neonatal Ed., September 1, 2002; 87(2): F133 - 136.
[Abstract] [Full Text] [PDF]


Home page
J. Am. Coll. Nutr.Home page
L. M. Carter, S. J. Whiting, D. T. Drinkwater, G. A. Zello, R. A. Faulkner, and D. A. Bailey
Self-Reported Calcium Intake and Bone Mineral Content in Children and Adolescents
J. Am. Coll. Nutr., October 1, 2001; 20(5): 502 - 509.
[Abstract] [Full Text] [PDF]


Home page
Arch. Dis. Child.Home page
M Sood, G Hambleton, M Super, W D Fraser, J E Adams, and M Z Mughal
Bone status in cystic fibrosis
Arch. Dis. Child., June 1, 2001; 84(6): 516 - 520.
[Abstract] [Full Text]


Home page
Am. J. Clin. Nutr.Home page
M. D Van Loan and N. L Keim
Influence of cognitive eating restraint on total-body measurements of bone mineral density and bone mineral content in premenopausal women aged 18-45 y: a cross-sectional study
Am. J. Clinical Nutrition, September 1, 2000; 72(3): 837 - 843.
[Abstract] [Full Text] [PDF]


Home page
J. Gerontol. A Biol. Sci. Med. Sci.Home page
G. Ravaglia, P. Forti, F. Maioli, B. Nesi, L. Pratelli, D. Cucinotta, L. Bastagli, and G. Cavalli
Body Composition, Sex Steroids, IGF-1, and Bone Mineral Status in Aging Men
J. Gerontol. A Biol. Sci. Med. Sci., September 1, 2000; 55(9): 516M - 521.
[Abstract] [Full Text]


Home page
ThoraxHome page
S P Conway, A M Morton, B Oldroyd, J G Truscott, H White, A H Smith, and I Haigh
Osteoporosis and osteopenia in adults and adolescents with cystic fibrosis: prevalence and associated factors
Thorax, September 1, 2000; 55(9): 798 - 804.
[Abstract] [Full Text]


Home page
J. Nutr.Home page
W. W. K. Koo, J. C. Walters, and E. M. Hockman
Body Composition in Human Infants at Birth and Postnatally
J. Nutr., September 1, 2000; 130(9): 2188 - 2194.
[Abstract] [Full Text]


Home page
Arch. Dis. Child.Home page
N J Shaw, C M Boivin, and N J Crabtree
Intravenous pamidronate in juvenile osteoporosis
Arch. Dis. Child., August 1, 2000; 83(2): 143 - 145.
[Abstract] [Full Text] [PDF]


Home page
Am. J. Clin. Nutr.Home page
A. Prentice
Maternal calcium metabolism and bone mineral status
Am. J. Clinical Nutrition, May 1, 2000; 71(5): 1312S - 1316.
[Abstract] [Full Text] [PDF]


Home page
J. Nutr.Home page
J. M. Hopkinson, N. F. Butte, K. Ellis, and E. O’B. Smith
Lactation Delays Postpartum Bone Mineral Accretion and Temporarily Alters Its Regional Distribution in Women
J. Nutr., April 1, 2000; 130(4): 777 - 783.
[Abstract] [Full Text]


Home page
Am. J. Clin. Nutr.Home page
B. Dibba, A. Prentice, M. Ceesay, D. M Stirling, T. J Cole, and E. M. Poskitt
Effect of calcium supplementation on bone mineral accretion in Gambian children accustomed to a low-calcium diet1
Am. J. Clinical Nutrition, February 1, 2000; 71(2): 544 - 549.
[Abstract] [Full Text] [PDF]


Home page
J. Clin. Endocrinol. Metab.Home page
Bone Mineral Acquisition in Healthy Asian, Hispanic, Black, and Caucasian Youth: A Longitudinal Study
J. Clin. Endocrinol. Metab., December 1, 1999; 84(12): 4702 - 4712.
[Abstract] [Full Text]


Home page
Am. J. Clin. Nutr.Home page
K. Kennedy, M. S Fewtrell, R. Morley, R. Abbott, P. T Quinlan, J. C. Wells, J. G Bindels, and A. Lucas
Double-blind, randomized trial of a synthetic triacylglycerol in formula-fed term infants: effects on stool biochemistry, stool characteristics, and bone mineralization
Am. J. Clinical Nutrition, November 1, 1999; 70(5): 920 - 927.
[Abstract] [Full Text] [PDF]


Home page
Obstet GynecolHome page
M. A. LASKEY and A. PRENTICE
Bone Mineral Changes During and After Lactation
Obstet. Gynecol., October 1, 1999; 94(4): 608 - 615.
[Abstract] [Full Text] [PDF]


Home page
Arch. Dis. Child.Home page
E M Laursen, C Mølgaard, K F Michaelsen, C Koch, and J Müller
Bone mineral status in 134 patients with cystic fibrosis
Arch. Dis. Child., September 1, 1999; 81(3): 235 - 240.
[Abstract] [Full Text]


Home page
Arch. Dis. Child.Home page
C. Mølgaard, B. L. Thomsen, and K. F. Michaelsen
Whole body bone mineral accretion in healthy children and adolescents
Arch. Dis. Child., July 1, 1999; 81(1): 10 - 15.
[Abstract] [Full Text]


Home page
J. Clin. Endocrinol. Metab.Home page
S. Ferrari, D. Manen, J.-P. Bonjour, D. Slosman, and R. Rizzoli
Bone Mineral Mass and Calcium and Phosphate Metabolism in Young Men: Relationships with Vitamin D Receptor Allelic Polymorphisms
J. Clin. Endocrinol. Metab., June 1, 1999; 84(6): 2043 - 2048.
[Abstract] [Full Text]


Home page
Arch. Dis. Child. Fetal Neonatal Ed.Home page
D J Rawlings, R J Cooke, K McCormick, I J Griffin, K Faulkner, J C K Wells, J S Smith, and S J Robinson
Body composition of preterm infants during infancy
Arch. Dis. Child. Fetal Neonatal Ed., May 1, 1999; 80(3): 188F - 191.
[Abstract] [Full Text]


Home page
J. Clin. Endocrinol. Metab.Home page
S. Bertelloni, G. I. Baroncelli, M. Ferdeghini, G. Perri, and G. Saggese
Normal Volumetric Bone Mineral Density and Bone Turnover in Young Men with Histories of Constitutional Delay of Puberty
J. Clin. Endocrinol. Metab., December 1, 1998; 83(12): 4280 - 4283.
[Abstract] [Full Text]


Home page
J. Clin. Endocrinol. Metab.Home page
G. I. Baroncelli, S. Bertelloni, C. Ceccarelli, and G. Saggese
Measurement of Volumetric Bone Mineral Density Accurately Determines Degree of Lumbar Undermineralization in Children with Growth Hormone Deficiency
J. Clin. Endocrinol. Metab., September 1, 1998; 83(9): 3150 - 3154.
[Abstract] [Full Text]


Home page
Arch. Dis. Child.Home page
W J HANNAN, P TOTHILL, S J COWEN, and R M WRATE
Whole body bone mineral content in healthy children and adolescents
Arch. Dis. Child., April 1, 1998; 78(4): 395b - 395.
[Full Text]