PT - JOURNAL ARTICLE AU - G. H. Swapp TI - Misinterpretation of Normal Heart Sounds DP - 1961 Nov 01 TA - The Journal of the College of General Practitioners PG - 642--643 VI - 4 IP - 4 4099 - http://bjgp.org/content/4/4/642.short 4100 - http://bjgp.org/content/4/4/642.full SO - J Coll Gen Pract1961 Nov 01; 4