title: Chest pain with normal coronary arteries.
mesh_terms: D000787:Angina Pectoris / Q000188:drug therapy*; D017023:Coronary Angiography; D006801:Humans; D009573:Nitrites / Q000627:therapeutic use; D010146:Pain / Q000188:drug therapy*; D012016:Reference Values; D013909:Thorax
chemical_list: D009573:Nitrites