HNSTS	head and neck soft tissue sarcoma
STS	soft tissue sarcoma
NRI	nutritional risk index
BMI	body mass index
ALB	serum albumin
OS	overall survival
PFS	progression-free survival
SYSUCC	Sun Yat-sen University Cancer Center
AJCC	American Joint Committee on Cancer
FNCLCC	French Federation of Cancer Centers Sarcoma Group
MRI	magnetic resonance imaging
IQR	interquartile range
SD	standard deviation
C-index	concordance index
AUC	area under the curve
ROC	receiver operating characteristic
CONUT	controlling nutritional status
GPS	Glasgow prognostic score
PNI	prognostic nutritional index