Research of letrozole in animal styles have proven that it causes congenital anomalies if made use of through pregnancy, but there have been no research of the drug in pregnant women.eleven, 13 Study has proven that genetic and environmental components add to the event of PCOS, but its actual cause https://kylerumaod.goabroadblog.com/33018646/polycystic-ovary-syndrome-an-overview