id	keyword
ape-2547	service
ape-2547	satisfaction
ape-2547	quality
ape-2547	patient
ape-2547	hospital
ape-2547	variable
ape-2547	facilities
ape-2547	test
ape-2547	data
ape-2547	customer
ape-2547	service quality
ape-2547	consumers
ape-2547	economic
ape-2547	regression
ape-2547	vol
ape-2547	research
ape-2547	politics
ape-2547	expectations
ape-2547	advances