id	keyword
american_scientific_journal-3238	years
american_scientific_journal-3238	group
american_scientific_journal-3238	cancer
american_scientific_journal-3238	breast
american_scientific_journal-3238	menopause
american_scientific_journal-3238	cholesterol
american_scientific_journal-3238	age
american_scientific_journal-3238	estradiol
american_scientific_journal-3238	hdl