ISBN 0632045760 books & textbook
Microbiology for the Boards and Wards: Usmle Step 1 (Boards and Wards Series)
Ayala, Carlos Spellberg, Brad, M.D.
Lippincott Williams & Wilkins /2001T Paperback / 150 Pages
isbn-10: 0632045760 / isbn-13: 9780632045761
