title: Hepatic melanosis and ageing in amphibia. A preliminary observation on two species of anura Xenopus laevis and Rana nigromaculata.
mesh_terms: D000375:Aging; D000818:Animals; D005260:Female; D007668:Kidney / Q000473:pathology; D008099:Liver / Q000473:pathology / Q000648:ultrastructure; D008107:Liver Diseases / Q000473:pathology / Q000662:veterinary*; D008297:Male; D008548:Melanosis / Q000473:pathology / Q000662:veterinary*; D008854:Microscopy, Electron; D009206:Myocardium / Q000473:pathology; D010860:Pigments, Biological; D011898:Ranidae; D012737:Sex Factors; D012867:Skin / Q000473:pathology; D013154:Spleen / Q000473:pathology; D014981:Xenopus
chemical_list: D010860:Pigments, Biological