TY - BOOK AU - Hay,David W. TI - Gastrointestinal and liver disease SN - 9780632045037 U1 - 616.33 H D G 221 PY - 2002/// CY - Malden, MA, London PB - Blackwell Science KW - Gastrointestinal system KW - Diseases KW - Primary care (Medicine) N1 - Includes index ER -