id	keyword
mkg-1092	extract
mkg-1092	group
mkg-1092	gynura
mkg-1092	4nqo
mkg-1092	procumbens
mkg-1092	rats
mkg-1092	tongue
mkg-1092	weeks
mkg-1092	carcinogenesis
mkg-1092	scc
mkg-1092	study
mkg-1092	leaves
mkg-1092	figure