Aygen 2007.

Methods	Randomised clinical trial
Participants	15 infertile women with PCOS
Interventions	Women were randomised into 3 treatment groups: Group 1: continuous metformin was used at the dose of 850 mg/tid/day for 6 months; afterwards, daily 2.5 mg letrozole between 3 and 7 days of the menstrual cycle was added to the metformin therapy. Group 2: participants received only daily 2.5 mg letrozole between days 3 and 7 of the menstrual cycle. Group 3: participants received daily 100 mg CC only between days 3 and 7 of the menstrual cycle.
Outcomes	Unclear
Notes	The article was written in Turkish, and we were not able to have it translated properly.