Unger, Leon <br/><br/>
Stepping stones in allergy : a historical narrative /  
Leon Unger, M. Coleman Harris 
 - San Francisco :   [Editor no identificado],  1975 
 - 170 p 
<br/><br/> Incluye índice 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Asma ---Historia<br/>Hipersensibilidad
<br/><br/><label>Dewey Class. No.: </label>616.238 U57s