First Aid for the USMLE Step 2 : a studen to student guide / by Vikas Bhushan et. al. - 4th ed. - New York: McGraw-Hill Companies, 2003. - xv, 614p. : ills. Includes an index. ISBN: 0071409300 Subjects--Topical Terms: Medicine --Examination, questions LC Class. No.: R 834.5 FIR 2003