title: High-altitude chemodectoma.
mesh_terms: D000531:Altitude; D002345:Carotid Body Tumor / Q000209:etiology*; D005260:Female; D006257:Head; D006258:Head and Neck Neoplasms / Q000209:etiology*; D006801:Humans; D008297:Male; D010236:Paraganglioma, Extra-Adrenal / Q000209:etiology*; D012737:Sex Factors; D013020:South America