Organic disease presenting as hyperventilation syndrome.
D000310:Adrenal Gland Neoplasms / Q000175:diagnosis; D000328:Adult; D001932:Brain Neoplasms / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D006985:Hyperventilation / Q000175:diagnosis*; D007011:Hypoparathyroidism / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D010673:Pheochromocytoma / Q000175:diagnosis; D011164:Porphyrias / Q000175:diagnosis; D011602:Psychophysiologic Disorders / Q000175:diagnosis