1. Letrozole, berberine, or their combination for anovulatory infertility in women with polycystic ovary syndrome: study design of a double-blind randomised controlled trial. Issue 11 (25th November 2013) Authors: Li, Yan; Kuang, Hongying; Shen, Wenjuan; Ma, Hongli; Zhang, Yuehui; Stener-Victorin, Elisabet; Hung, Ernest; Ng, Yu; Liu, Jianping; Kuang, Haixue; Hou, Lihui; Wu, Xiaoke Journal: BMJ open Issue: Volume 3:Issue 11(2013) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗