| GBC | Gallbladder cancer |
| AJCC | American Joint Committee on Cancer |
| ASA | American Society of Anesthesiologists |
| BMI | Body mass index |
| CA19-9 | Linear dichroism |
| CEA | Carcinoembryonic antigen |
| CI | Confidence interval |
| HR | Hazard ratio |
| N | Number |
| OR | Odds ratio |
| Preop. | Preoperative |
| SD | Standard deviation |
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