Manual of procedures / 
United States Department of Health, Education and Welfare 
 - Washington, D.C. :  U. S. Dept. of Health, Education and Welfare, Institute for Clinical Science,  1979 
 - ii, 96 p. ;  26 cm. 
<br/><br/> On spine: Laboratory diagnosis of diseases caused by toxic agents  Cooperative early lung cancer group  National cancer institute 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Diagnosis, Laboratory<br/>Poisons--Analysis
<br/><br/><label>Dewey Class. No.: </label>615.907