Usmle step 1 secrets 
Brown,Thomas 
 - Philadelphia  Hanley&Belfus  c2004 
 - ix,313p.:  ill 
<br/><br/> Includes bibliographical reference and index 
<br/><br/><label>ISBN: </label>9781560535706 
<br/><br/><label>LC Class. No.: </label>R834.5  / .B355 2004