GI	Gastrointestinal
MELD	Model for End-stage Liver Disease
ML	Machine learning
ED	Emergency department
LR	Linear regression
XGB	XGBoost
NN	Neural network
BUN	Blood urea nitrogen
SBP	Systolic blood pressure
WBC	White blood cell
INR	International normalized ratio
RDW	Red blood cell distribution width
MCV	Mean corpuscular volume