TY - GEN AU - Putnam,S G TI - Endoscopy SN - 0028-4793 PY - 2000///0420 KW - Bile Duct Neoplasms KW - therapy KW - Cholangiocarcinoma KW - Cost-Benefit Analysis KW - Endoscopy, Digestive System KW - Gallbladder Neoplasms KW - Humans KW - Palliative Care KW - Stents KW - economics N1 - Publication Type: Letter ER -