%0 Journal Article %T High prevalence of vitamin D deficiency and influencing factors among urban and rural residents in Tianjin, China %A Fang, Fang %A Wei, Hongyan %A Wang, Kunling %A Tan, Long %A Zhang, Wanqi %A Ding, Li %A Liu, Tong %A Shan, Zhongyan %A Zhu, Mei %J Archives of Osteoporosis %V 13 %N 1 %P 1-8 %@ 1862-3522 %D 2018-06-02 %I Springer London %~ DeepDyve