id	keyword
mkg-32662	cleft
mkg-32662	acid
mkg-32662	folic
mkg-32662	lip
mkg-32662	palate
mkg-32662	study
mkg-32662	trimester
mkg-32662	association
mkg-32662	supplements
mkg-32662	pregnancy
mkg-32662	cases
mkg-32662	maternal