Ionization chamber smoke detector meeting :  held in Rockville,Maryland January 12,1978 

 - Maryland :  Department of Health, Education and Welfare ,  1979 
 - viii, 54 p. ;  28 cm. 
<br/><br/> HEW publication (FDA) 80-8101 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radiology--Medical<br/>Diagnosis