Nicolson, Gertrude H.B. <br/><br/>
Clinical electrocardiography in children. 

 - New York,  Macmillan,  1953 
 - ix, 118 p.  ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrocardiography
<br/><br/><label>National Library of Medicine Call No.: </label>WG 140  / .N53 1953