Ayala, Carlos Microbiology and immunology for the boards and wards : USMLE step 1 Carlos Ayala, Brad Spellberg - Oxford ; Malden, MA Blackwell Publishing 2005 - xvi, 233 p. : ill. ; 22 cm. Includes index ISBN: 9781405104685 ISSN: 2004029351 Subjects--Topical Terms: Immune System Diseases - Examination QuestionsImmunity - Examination QuestionsImmunology - Examinations, questions, etcImmunology - Outlines, syllabi, etcMicrobiology - Examination QuestionsMicrobiology - Examinations, questions, etc Dewey Class. No.: 616.9041 AYA