ERCP is most dangerous for people who need it least.
Cotton
P B
PB
D015746:Abdominal Pain; D000328:Adult; D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008875:Middle Aged; D010195:Pancreatitis / Q000453:epidemiology / Q000209:etiology*; D012307:Risk Factors