id	keyword
american_scientific_journal-4971	artery
american_scientific_journal-4971	acute
american_scientific_journal-4971	infarction
american_scientific_journal-4971	occlusion
american_scientific_journal-4971	heart
american_scientific_journal-4971	group
american_scientific_journal-4971	model
american_scientific_journal-4971	rats
american_scientific_journal-4971	day
american_scientific_journal-4971	ischemia