1Chapuy MC, Arlot ME, Duboeuf F, et al. Vitamin D and calcium to prevent hip fractures in elderly women [J]. N Engl J Med,1992,327(23):1637-1642.
2Steingrimsdottir L, Gunnarsson O, Indridason OS, et al. Relationship between serum parathyroid hormone levels, vitamin D sufficiency, and calcium intake [J]. JAMA, 2005,294(18):2336-2341.
3Harris SS, Soteriades E, Coolidge JA, et al. Vitamin D insufficiency and hyperparathyroidism in a low income, multiracial, elderly population [J]. J Clin Endocrinol Metab,2000,85(11):4125-4130.
4Looker AC, Dawson-Hughes B, Cairo MS, et al. Serum 25-hydroxyvitamin D status of adolescents and adults in two seasonal subpopulations from NHANES Ⅲ[J]. Bone, 2002,30(5):771-777.
6Hirani V, Primatesta P. Vitamin D concentrations among people aged 65 years and over living in private house- holds and institutions in England: population survey [J]. Age Ageing,2005,34(7):485-491.
7Ginde AA, Liu MC, Camargo CA Jr. Demographic differ- ences and trends of vitamin D insufficiency in the US population,1988-200d [J]. Arch Intern Med,2009,169(6): 626-632.
8Levin A, Bakris GL, Molitch M, et al. Prevalence of ab- normal serum vitamin D, PTH, calcium, and phosphorus in patient with chronic kidney disease:results of the study to evaluate early kidney disease [J]. Kidney Int,2007,71 (1):31-38.
9Endo K, Katsumata K, Hirata M, et al. 1,25-dihy- droxyvitamin D3 as its analogue OCT lower blood cacium through inhibition of bone resorption in hypercalcemic rats with continuous parathyroid hormone-related peptide infusion[J]. J Bone Miner Res, 2000,15(1):175-181.
10Bischoff-Ferrari HA, Willett WC, Wong JB, et al. Fracture prevention with vitamin D supplementation: A meta-ana- lysis of randomized controlled trials [J].JAMA,2005,293 (18):2257-2264.
