id	keyword
cpos-164	voc
cpos-164	children
cpos-164	taiwan
cpos-164	mainland
cpos-164	china
cpos-164	value
cpos-164	chinese
cpos-164	family
cpos-164	mainland china
cpos-164	transmission
cpos-164	mothers
cpos-164	grandmothers
cpos-164	cultural
cpos-164	generations
cpos-164	fertility
cpos-164	factor
cpos-164	rural
cpos-164	study