title: Intraoperative coronary artery spasm.
mesh_terms: D001026:Coronary Artery Bypass; D003329:Coronary Vasospasm / Q000139:chemically induced*; D006801:Humans; D007431:Intraoperative Complications; D008297:Male; D008875:Middle Aged; D009543:Nifedipine / Q000009:adverse effects*; D013375:Substance Withdrawal Syndrome
chemical_list: D009543:Nifedipine