AL	Anastomotic leakages
POD	postoperative days
AUC	area under curve
ROC	receiver operating characteristic curve
CRP	C-reactive protein
RAMIE	robot-assisted minimally invasive esophagectomy
OE	open esophagectomy
PIC	postoperative infectious complications
WBC	white blood cell
PCT	procalcitonin
NUn-score	Noble and Underwood-score
COPD	chronic obstructive pulmonary disease
BMI	body mass index
ICU	intensive care unit