Saha 2020.

Methods	Randomised controlled trial
Participants	Total 108 anovulatory PCO women in the age group 20 to 36 years who had previous R3 failed treatment cycles with CC
Interventions	Group A: letrozole plus 3 doses of gonadotropin Group B: continuous gonadotropin  54 patients in each group
Outcomes	Both groups were evaluated in respect of terminal endocrinological profile, number of follicles, ovulation rate, pregnancy rate and outcome, adverse effects and cost‐effectivity.
Notes	Only conference abstract found, no full article available; no further trial or author information