id	keyword
hls-13023	smoking
hls-13023	inf
hls-13023	health
hls-13023	smoke
hls-13023	cigarette
hls-13023	campus
hls-13023	tobacco
hls-13023	smokers
hls-13023	behavior
hls-13023	environment
hls-13023	sciences
hls-13023	factors
hls-13023	students
hls-13023	friends
hls-13023	research