title: Clinical improvement of patients with chest pain and normal coronary arteries after coronary arteriography: the possible role of hyperventilation syndrome.
mesh_terms: D017023:Coronary Angiography; D005260:Female; D006801:Humans; D006985:Hyperventilation / Q000523:psychology*; D008297:Male; D010146:Pain; D011602:Psychophysiologic Disorders; D013909:Thorax