Study on the relationship between follicular fluid 25-(OH) D level and in vitro fertilization oocyte development and clinical outcome in secondary infertile women

JIA Xin-zhuan, WANG Cong-min, LIU Er-huan, ZHANG Na, WEI Lan

Tianjin Medical Journal . 2020, (12): 1187 -1192 . DOI: 10.11958/20201804