File talk:Phonocardiograms from normal and abnormal heart sounds.png

This exact image is on the very famous book, Textbook of Medical Physiology, Eleventh Edition by Guyton & Hall. It is in Section IV, Chapter 23, Page 271, with following annotation: Figure 23-3 Phonocardiograms from normal and abnormal hearts. sami (talk) 23:40, 15 March 2010 (UTC)