Nasogastric biliary endoprosthesis removal.
D001659:Biliary Tract; D006801:Humans; D008297:Male; D008875:Middle Aged; D009055:Mouth / Q000601:surgery; D009666:Nose / Q000601:surgery; D019736:Prostheses and Implants; D013514:Surgical Procedures, Operative / Q000379:methods*