Ashman, Richard  1890- <br/><br/>
Essentials of Electrocardiography 
by Richard Ashman and Edgar Hull. 
 - 2a ed. 
 - New York  The Macmillan Company  1941 
 - viii, 373 p.  il.  22 cm. 
<br/><br/> Au843 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Corazón--Enfermedades - Diagnóstico<br/>Electrodiagnóstico
<br/><br/><label>LC Class. No.: </label>RC683  / .A84 1941