TY - BOOK AU - Le,Tao,...[et al] TI - First aid for the USMLE step 1 2009 : a student-to-student guide SN - 9780071269315 AV - R834.5 L433 F5 2009 PY - 2009/// CY - Boston PB - McGraw Hill Medical KW - Clinical Medicine KW - Handbooks KW - Medicine KW - Examination Questions KW - Educational Measurement ER -