Bile Duct Neoplasms--economics Bile Ducts, Intrahepatic--pathology Cholangiocarcinoma--economics Cost-Benefit Analysis Decision Support Techniques Drainage--economics Endoscopy--economics Health Care Costs Hospital Charges Humans Life Expectancy Markov Chains Metals Models, Economic Plastics Probability Prosthesis Design Quality-Adjusted Life Years Stents--economics Tertiary Care Centers--economics Thailand Time Factors Treatment Outcome