Objective: To determine the minimal effective daily dose of gonadotropin-releasing hormone (GnRH) antagonist in lower-weight Asian women undergoing controlled ovarian hyperstimulation (COH). Materials and Methods: A prospective randomized controlled trial of GnRH antagonist was performed. A total of 58 women with body weight of 40-50 kg accepted COH and transvaginal embryo transfer. https://cuttingedgecutleryco.shop/product-category/kiritsuke/