title: Acute and chronic morphine sulfate treatment alters ovarian development in prepuberal rats.
mesh_terms: D000818:Animals; D001835:Body Weight / Q000187:drug effects; D005260:Female; D007030:Hypothalamo-Hypophyseal System / Q000187:drug effects; D009020:Morphine / Q000494:pharmacology*; D009865:Oocytes / Q000187:drug effects; D009929:Organ Size / Q000187:drug effects; D006080:Ovarian Follicle / Q000187:drug effects*; D010053:Ovary / Q000187:drug effects* / Q000254:growth & development; D051381:Rats; D012741:Sexual Maturation / Q000187:drug effects
chemical_list: D009020:Morphine