3Steelman J,Zeitler P.Osteoporosis in pediatrics[J].Pediatrics in Review,2001,22(2):56-65.
4Lenders C M,Feldman H A,von Scheven E,et al.Relation of body fat in dexes to vitamin D status and deficiency among obese adolescents[J].Am J Clin Nute,2009,90(3):459-467.
5Nohara T,Ueda M,Ohta A.Correlation of body growthand bone mineral density measured by ultrasound densitometry of the calcaneus in children and adolescents[J].Tohoku J Exp Med,2009,219(1):63-69.
6Leonard C M,Roza M A,Barr R D,et al.Reproducibility of DXA measurements of bone mineral density and body composition in children[J].Pediatr Radiol,2009,39(2):148-154.