id	keyword
ecj-2271	visits
ecj-2271	psychiatric
ecj-2271	emergency
ecj-2271	number
ecj-2271	patients
ecj-2271	temperature
ecj-2271	emergencies
ecj-2271	humidity
ecj-2271	department
ecj-2271	disorders
ecj-2271	mean
ecj-2271	study