Endoscopic retrograde cholangiopancreatography and laparoscopic cholecystectomy (the relationship is strained, but they are still together for the children's sake).
Kozarek
R A
RA
D002760:Cholangiopancreatography, Endoscopic Retrograde; D017081:Cholecystectomy, Laparoscopic; D006801:Humans; D011182:Postoperative Care