Kaplan USMLE Step 1 Homestudy / por: USMLE. Program of the Federation of State Medical Boards of the United States and the National Board of Medical Examiners. Publicado: (c2008.)
USMLE Step 2 Computer-Based Practice / por: USMLE. Program of the Federation of State Medical Boards of the United States and the National Board of Medical Examiners. Publicado: (c1999.)