First aid for the USMLE step 2 : a student to student guide / Tao Le ... [et al.] - 4th ed. - New York : McGraw-Hill, 2003 - xvi, 614 p. : ill. ; 28 cm. ISBN: 0071409300 RM160.44 Subjects--Topical Terms: Licensure, Medical--United StatesMedicine--examination questions National Library of Medicine Call No.: W40