title: Correlative histochemical and ultrastructural studies on fetal and early postnatal guinea pig ovaries, with special reference to the development of interstitial cell system.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D002784:Cholesterol / Q000032:analysis; D005260:Female; D005865:Gestational Age; D006168:Guinea Pigs; D006651:Histocytochemistry; D008074:Lipoproteins / Q000032:analysis; D010053:Ovary / Q000032:analysis / Q000166:cytology / Q000196:embryology*; D011247:Pregnancy; D013194:Staining and Labeling; D014280:Triglycerides / Q000032:analysis
chemical_list: D008074:Lipoproteins; D014280:Triglycerides; D002784:Cholesterol