First aid for the USMLE step 1 2007/ Vikas Bhusan [and 3 others]. - Boston: McGraw Hill Medical, c2007. - xvii, 534 pages: color illustrations; 28 cm. Includes index. ISBN: 978-0-07-126096-1 Subjects--Topical Terms: Medicine --Examinations --Yearbooks Dewey Class. No.: DC 610.7622 / B46f