Palihawadana, T.S.Wijesinghe, P.S.Seneviratne, H.R.2016-01-192016-01-192015The Ceylon Medical Journal, 60(2):p.48-52https://dl.nsf.gov.lk/handle/1/21933A comparison of endometrial thickness following augmentation of ovulation with clomifene citrate or letrozole in women with ovulatory infertilityArticle