Letter by Ong et al regarding article, "coronary artery spasm: a 2009 update".
Ong
Peter
P
Athanasiadis
Anastasios
A
Sechtem
Udo
U
D000787:Angina Pectoris / Q000175:diagnosis* / Q000209:etiology*; D017023:Coronary Angiography; D003329:Coronary Vasospasm / Q000175:diagnosis* / Q000209:etiology*; D004562:Electrocardiography; D006801:Humans