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Choavaratana, R.; Malakorn, K.; Thanaboonyawat, I.; Petyim, S.; Laokirkkiat, P.; Saad, N.; Prechapanich, J. Endometrial Thinning After Ovarian Stimulation Using Letrozole or Clomiphene Citrate: A Randomized Trial. Siriraj Med J 2018, 70, 335-342.