TY - BOOK AU - Riemann,J.F. AU - Ell,C. TI - Lasers in gastroenterology: international experiences and trends SN - 0865772924 PY - 1989/// CY - Stuttgart PB - George Thieme Verlag KW - Gastroinfestinal Diseases KW - radiotherapy KW - Lasers KW - Therapeutic use ER -