title: Frequency of implantation and early pregnancy loss in natural cycles.
authors.forename: T
authors.initials: T
authors.lastname: Chard
mesh_terms: D000022:Abortion, Spontaneous / Q000453:epidemiology* / Q000503:physiopathology; D006063:Chorionic Gonadotropin / Q000032:analysis; D010064:Embryo Implantation / Q000502:physiology*; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D011247:Pregnancy
chemical_list: D006063:Chorionic Gonadotropin