RT Journal Article SR Electronic T1 Cardiology in the days of Laennec. The story of auscultation of the heart. JF British Heart Journal JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1193 OP 1198 DO 10.1136/hrt.34.12.1193 VO 34 IS 12 A1 E Bedford YR 1972 UL http://heart.bmj.com/content/34/12/1193.abstract AB