APA
(2012). When is it Too Late for Aortic Valve Surgery. European Journal of Cardiovascular Medicine, 2(4), 31-40.
MLA
. "When is it Too Late for Aortic Valve Surgery." European Journal of Cardiovascular Medicine 2.4 (2012): 31-40.
Chicago
. "When is it Too Late for Aortic Valve Surgery." European Journal of Cardiovascular Medicine 2, no. 4 (2012): 31-40.
Harvard
(2012) 'When is it Too Late for Aortic Valve Surgery' European Journal of Cardiovascular Medicine 2(4), pp. 31-40.
Vancouver
. When is it Too Late for Aortic Valve Surgery. European Journal of Cardiovascular Medicine. 2012 ;2(4):31-40.