TY - BOOK AU - Preedy,Victor R. AU - Watson,Ronald R. TI - Methods in disease: investigating the gastrointestinal tract SN - 1900151014 PY - 1998/// CY - London PB - Greenwich Medical Media KW - Gastrointestinal diseases KW - Diagnosis KW - Diagnostic Techniques, Digestive System KW - Gastrointestinal Diseases KW - physiopathology ER -