Parafollicular cells of human thyroid.
D000368:Aged; D002116:Calcitonin / Q000378:metabolism; D003102:Colloids; D006801:Humans; D008854:Microscopy, Electron; D008875:Middle Aged; D009940:Organoids; D013959:Thyroid Diseases / Q000209:etiology; D013961:Thyroid Gland / Q000166:cytology*; D013964:Thyroid Neoplasms / Q000209:etiology
D003102:Colloids; D002116:Calcitonin