Local laboratory service;  approved laboratories. 

 - Albany,  1947. 
 - 42 p. 
<br/><br/><label>LCCN: </label>med48000525  
<br/><br/><label>LC Class. No.: </label>RA428  / .N4 1947 
<br/><br/><label>National Library of Medicine Call No.: </label>WA 23  / N532L 1947