The most common letrozole related toxicities included grade 1 and 2 hot flashes 28, followed by fatigue 12 <a href=
http://nolvadex.lol>tamoxifen and uterine cancer</a> A rise in serum progesterone level greater than 3 ng mL correlates well with the finding of a secretory endometrium, but it has been reported that the maximal midluteal progesterone levels in CC induced ovulatory conception cycles are consistently more than 15 ng mL Hammond, 1983