TY - BOOK AU - Walter,J.B. TI - An introduction to the principles of disease SN - 0721691218 (pbk.) AV - RB111 .W15 1982 U1 - 616.07 19 PY - 1982/// CY - Philadelphia PB - Saunders KW - Pathology KW - Local N1 - Includes bibliographies and index ER -