The development of thyroid neoplasia in old age in the amazon molly, Poecilia formosa.
D000375:Aging; D000818:Animals; D005399:Fishes / Q000033:anatomy & histology* / Q000502:physiology; D009374:Neoplasms, Experimental / Q000473:pathology; D013961:Thyroid Gland / Q000033:anatomy & histology / Q000473:pathology*; D013964:Thyroid Neoplasms / Q000473:pathology*