title: Histochemical and ultrastructural studies of chemodectoma-like tumors in the cod (Gadus morrhua L.).
mesh_terms: D000818:Animals; D002345:Carotid Body Tumor / Q000648:ultrastructure; D002628:Chemoreceptor Cells / Q000033:anatomy & histology; D003593:Cytoplasm / Q000648:ultrastructure; D005393:Fish Diseases / Q000473:pathology*; D005399:Fishes; D010236:Paraganglioma, Extra-Adrenal / Q000473:pathology / Q000648:ultrastructure / Q000662:veterinary*