Ayala, Carlos Pathophysiology for the boards and wards: a review for USMLE step 1/ by Carlos Ayala and Brad Spellberg - 3rd ed. - Massachusettes : blackwell science, 2000. - xiii, 288p.: ill. ISBN: 0632044853 Subjects--Topical Terms: Physiology, pathology-outlines, syllabi etcPhysiology, pathological-examinations-study guides LC Class. No.: RB 113 AYA 2000