The Society of American Gastrointestinal and Endoscopic Surgeons<unk>  guidelines for clinical application of laparoscopic biliary tract surgery is graded and linked to evidence using the definitions in<unk>  system of grading.
SAGES system classification scheme
ACG guidelines classification scheme
Baltimore classification
GRADE system classification scheme
Linitis plastica classification
Lauge-Hansen classification
Child-Turcotte classification
Leprosy classification