title: Modifications of the human endometrial fine structure induced by low-dose progestogen therapy.
mesh_terms: D001706:Biopsy; D004305:Dose-Response Relationship, Drug; D004717:Endometrium / Q000187:drug effects* / Q000648:ultrastructure; D005260:Female; D006801:Humans; D008535:Megestrol / Q000008:administration & dosage / Q000494:pharmacology*; D008598:Menstruation; D008854:Microscopy, Electron; D010060:Ovulation; D013997:Time Factors
chemical_list: D008535:Megestrol