This is a retouched picture , which means that it has been digitally altered from its original version. Modifications: Two images together forming a two period ECG with RR-interval between two R waves . The original can be viewed here: ECG-P+QRSkomplex+T.svg : . Modifications made by Kychot .

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This image is a derivative work of the following images:

• File:ECG-P+QRSkomplex+T.svg licensed with Copyrighted free use
  • 2009-09-23T10:10:43Z Kychot 992x744 (11465 Bytes) {{Information |Description=Schematic diagram of normal sinus rhythm for a human heart as seen on ECG (with Czech labels – only P,Q,R,S,T waves, RST complex and isoelectric line). |Source=*[[:File:ECG-PQRST+popis.svg|]] |Dat

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