work of the following images: File:Phonocardiograms_from_normal_and_abnormal_heart_sounds.svg licensed with Cc-by-sa-3.0 2010-03-06T10:48:23Z Madhero88
English ECG of a heart in sinus rhythm Spanish ECG de un corazón con ritmo sinusal normal Dutch Electro cardiogram German ECG of Heart in normal Sinus Rhythm
svg licensed with Copyrighted free use 2007-01-13T22:39:14Z Atom cz 1103x1088 (17098 Bytes) {{Information |Description=Schematic diagram of normal sinus