Vitamin D supplementation prior to in vitro fertilisation in women with polycystic ovary syndrome: a protocol of a multicentre randomised, double-blind, placebo-controlled clinical trial
Kai-Lun Hu, Kwanghann Gan, Rui Wang, Wentao Li, Qiongfang Wu, Beihong Zheng, Libo Zou, Su Zhang, Yifeng Liu, Yiqing Wu, Ruixue Chen, Wushuang Cao, Shuo Yang, Fen-Ting Liu, Lifeng Tian, Han Zeng, Huiling Xu, Shumin Qiu, Lihua Yang, Xiao Chen, Xiaoqin Pan, Xiaoyun Wu, Ben W Mol, Rong Li, Dan Zhang
BMJ Open Dec 2020, 10 (12) e041409; DOI: 10.1136/bmjopen-2020-041409