The challenge of the bile duct in 1990.
Peel
A L
AL
North Tees District General Hospital, Hardwick, Stockton-on-Tees, Cleveland.
D000368:Aged; D000369:Aged, 80 and over; D004724:Endoscopy; D042882:Gallstones / Q000628:therapy*; D006801:Humans; D008096:Lithotripsy; D008875:Middle Aged