"Skinny needle" cholangiography--results of a pilot study of a voluntary prospective method for gathering risk data on new procedures.
D002758:Cholangiography / Q000009:adverse effects / Q000379:methods*; D003362:Cost-Benefit Analysis; D003625:Data Collection / Q000379:methods*; D006805:Human Experimentation; D006801:Humans; D008107:Liver Diseases / Q000175:diagnosis*; D010865:Pilot Projects; D011446:Prospective Studies; D011786:Quality Control; D012107:Research Design; D012306:Risk; D011795:Surveys and Questionnaires; D014481:United States