NOTES	Natural Orifice Translumenal Endoscopic Surgery
TaTME	Trans-Anal Total Mesorectal Excision
NOSE	Natural Orifice Specimen Extraction
vNOTES	Transvaginal NOTES
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
NHLBI	National Heart, Lung, And Blood Institute
SD	Standard Deviation
IQR	Interquartile Range
95% CI	95% Confidence Interval
RP	Raw Proportion
RE	Random Effects
FE	Fixed-Effect
CF-E	Continuous Fixed-Effect
CR-E	Continuous Random-Effect
BF-E	Binary Fixed-Effect
n/a	Not Applicable
BMI	Body Mass Index
ASA	American Society of Anesthesiologists
TNM	Tumor Node Metastasis