Ayala, Carlos Microbiology for the boards and wards : USMLE step 1 / Carlos Ayala, Brad Spellberg - Malden, MA : Blackwell Science, 2001 - xi, 163 p. : ill. ; 22 cm - Boards and wards series . ISBN: 0632045760 RM 83.25 Subjects--Topical Terms: Microbiology--Examination QuestionsAntibiotics--therapeutic use--Examination QuestionsCommunicable Diseases--Examination Questions National Library of Medicine Call No.: QW18.2 / .A973m 2001 9