USMLE step 1 / 
Edward F. Goljan, series editor. 
 - Philadelphia, Pa. :  Mosby,  c2002. 
 - xiii, 314p. ; 23 cm. 
<br/><br/><label>ISBN: </label>0323008410 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clinical medicine--Examination questions.