id	keyword
american_scientific_journal-2296	women
american_scientific_journal-2296	pregnancy
american_scientific_journal-2296	age
american_scientific_journal-2296	education
american_scientific_journal-2296	childbearing
american_scientific_journal-2296	late
american_scientific_journal-2296	kakamega
american_scientific_journal-2296	research
american_scientific_journal-2296	factors