id	keyword
chd-42	screening
chd-42	cancer
chd-42	intervention
chd-42	crc
chd-42	health
chd-42	fit
chd-42	korean
chd-42	group
chd-42	crc screening
chd-42	participants
chd-42	rates
chd-42	control
chd-42	colonoscopy