RT Journal Article SR Electronic T1 The diagnosis of hypertrophic cardiomyopathy JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 709 OP 714 DO 10.1136/heart.86.6.709 VO 86 IS 6 A1 E Douglas Wigle YR 2001 UL http://heart.bmj.com/content/86/6/709.abstract AB