title: Promotion and regression of neoplasia by testosterone-promoted cell differentiation in Xiphophorus and Girardinus.
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D003043:Cocarcinogenesis; D005260:Female; D005399:Fishes; D008297:Male; D008545:Melanoma / Q000209:etiology* / Q000235:genetics / Q000473:pathology; D008547:Melanophores / Q000473:pathology; D008777:Methyltestosterone / Q000494:pharmacology*
chemical_list: D008777:Methyltestosterone