Circulating 25-hydroxyvitamin D levels and frailty status in older women.
Ensrud KE, Ewing SK, Fredman L, Hochberg MC, Cauley JA, Hillier TA, Cummings SR, Yaffe K, Cawthon PM; Study of Osteoporotic Fractures Research Group.
Ensrud KE, et al. Among authors: ewing sk.
J Clin Endocrinol Metab. 2010 Dec;95(12):5266-73. doi: 10.1210/jc.2010-2317.
J Clin Endocrinol Metab. 2010.
PMID: 21131545
Free PMC article.