Paff, G H <br/><br/>
Observations on the development of the electrocardiogram.  [electronic resource] 

 -  The Anatomical record  Mar 1968 
 - 575-82 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0003-276X 
<br/><br/><label>Standard No.: </label>10.1002/ar.1091600306  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Blood Circulation--physiology<br/>Chick Embryo<br/>Cholinesterase Inhibitors--pharmacology<br/>Electrocardiography<br/>Heart--embryology<br/>Heart Block--chemically induced<br/>In Vitro Techniques<br/>Physostigmine--pharmacology