Cassidy J, Aronow WS, Prakash R (1975). "The effect of isometric exercise on the systolic murmur of patients with idiopathic hypertrophic subaortic stenosis". Chest. 67 (4): 395–397. doi:10.1378/chest.67.4.395. PMID1168115.
Cassidy J, Aronow WS, Prakash R (1975). "The effect of isometric exercise on the systolic murmur of patients with idiopathic hypertrophic subaortic stenosis". Chest. 67 (4): 395–397. doi:10.1378/chest.67.4.395. PMID1168115.