title: Chest pain during PTCA: unprovoked spasm of the contralateral coronary artery.
mesh_terms: D000800:Angioplasty, Balloon; D002637:Chest Pain / Q000209:etiology*; D003327:Coronary Disease / Q000628:therapy*; D003329:Coronary Vasospasm / Q000150:complications*; D005260:Female; D006801:Humans; D008875:Middle Aged