| OR | Operating Room |
| HRO | High-Reliability Organization |
| OCS | Order Communication System |
| OS | Orthopedic Surgery |
| OL | Otorhinolaryngology-Head and Neck Surgery |
| GU | Genito-Urology |
| CRS | Colorectal Surgery |
| CS | Thoracic & Cardiovascular Surgery |
| SMS | Short Message Service |
| IM | Instant Messaging Service |
| ASA | American Society of Anesthesiologists |
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