title: Critical study of the retarded progestational phase.
mesh_terms: D000328:Adult; D001706:Biopsy; D001831:Body Temperature; D003338:Corpus Luteum / Q000378:metabolism* / Q000503:physiopathology; D010064:Embryo Implantation; D004717:Endometrium; D005260:Female; D006801:Humans; D007247:Infertility, Female / Q000209:etiology* / Q000503:physiopathology; D010060:Ovulation; D011247:Pregnancy; D011372:Progestins / Q000378:metabolism*
chemical_list: D011372:Progestins