id	keyword
bibechana-62448	marriage
bibechana-62448	birth
bibechana-62448	time
bibechana-62448	factors
bibechana-62448	study
bibechana-62448	studies
bibechana-62448	women
bibechana-62448	articles
bibechana-62448	model
bibechana-62448	education
bibechana-62448	interval
bibechana-62448	review
bibechana-62448	childbirth
bibechana-62448	data