id	keyword
hls-11168	patients
hls-11168	covid-19
hls-11168	satisfaction
hls-11168	application
hls-11168	health
hls-11168	group
hls-11168	education
hls-11168	cna
hls-11168	care
hls-11168	isolation
hls-11168	control
hls-11168	nurses
hls-11168	study
hls-11168	healthcare