title: Thyroid tumours in the senile guppy, Lebistes reticulatus (peters).
mesh_terms: D000375:Aging; D000818:Animals; D005260:Female; D005393:Fish Diseases / Q000473:pathology*; D005399:Fishes; D006338:Heart Neoplasms / Q000556:secondary; D007680:Kidney Neoplasms / Q000556:secondary; D008113:Liver Neoplasms / Q000556:secondary / Q000662:veterinary; D013964:Thyroid Neoplasms / Q000473:pathology / Q000662:veterinary*