The risk paradox: use of elective cholecystectomy in older patients is independent of their risk of developing complications.
Riall TS, Adhikari D, Parmar AD, Linder SK, Dimou FM, Crowell W, Tamirisa NP, Townsend CM, Goodwin JS. The risk paradox: use of elective cholecystectomy in older patients is independent of their risk of developing complications. J Am Coll Surg. 2015 Apr; 220(4):682-90.