Pseudorandomization using an instrumental variable: a strong tool to break through selection bias.
Tsuyoshi
T
Hamada
Takeshi
T
Tsujino
Hiroyuki
H
Isayama
Kazuhiko
K
Koike
D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000706:statistics & numerical data*; D002763:Cholecystectomy / Q000706:statistics & numerical data*; D005260:Female; D006761:Hospitals / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D010195:Pancreatitis / Q000601:surgery*; D010359:Patient Readmission / Q000706:statistics & numerical data*