First aid for the USMLE step 1 2014 / [edited by] Toa Le ... [et al.]. - New York : McGraw Hill Medical, 2014. - xxii, 760 p. : ill. ; 28 cm. ISBN: 9780071831420 RM151.75 Subjects--Topical Terms: Licensure, Medical--United States.Medicine. Index Terms--Genre/Form: Examination Questions.Handbooks.