id	keyword
american_scientific_journal-5612	dysmenorrhea
american_scientific_journal-5612	study
american_scientific_journal-5612	pain
american_scientific_journal-5612	symptoms
american_scientific_journal-5612	prevalence
american_scientific_journal-5612	participants
american_scientific_journal-5612	sciences
american_scientific_journal-5612	management
american_scientific_journal-5612	dschang