id	keyword
easat-2984	doi
easat-2984	vol
easat-2984	clustering
easat-2984	areas
easat-2984	data
easat-2984	cases
easat-2984	population
easat-2984	density
easat-2984	pulmonary
easat-2984	number
easat-2984	clusters
easat-2984	ahc
easat-2984	factors
easat-2984	results