Pregnancy Rates Following Frozen Embryo Transfer (ET) in Women Failing to Conceive Despite Fresh ET in Women Using Low-Dosage Follicle-Stimulating Hormone (FSH) Protocol for Follicular Maturation of Several Eggs - Check, D.; Dix, E.; Check, J.H.; Maletteri, N.; Amui, J. (Fertility & Sterility, 2008)