FFS	Fee-for-Service
LMICs	Low and middle-income countries
PPS	Prospective payment system
BP	Bundle payment
VBP	Value-based purchasing
HIT	Health information technology
DID	Difference-in-Differences
LOS	Length-of-stay
MSC	Medical service capacity
NHC	National health commission
VIF	Variance inflation factor
IA	Information asymmetry
SID	Supply-induced demand
DRG	Diagnosis-Related Group
DIP	Big Data Diagnosis-Intervention Packet