Procedures to minimize diagnostie x-ray exposure of the human embryo and fetus / 
United States, Department of Health anb Human Service 
 - Washington, D.C. :  The Department,  1981 
 - vi, 30 p. ;  28 cm. 
 - Radiation recommendation seires .
<br/><br/>Bibliography : p. 28-30 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radiology, Medical<br/>Radiation--Toxicology
<br/><br/><label>Dewey Class. No.: </label>614.839