id	keyword
american_scientific_journal-905	weight
american_scientific_journal-905	khat
american_scientific_journal-905	extract
american_scientific_journal-905	effect
american_scientific_journal-905	day
american_scientific_journal-905	mice
american_scientific_journal-905	crude
american_scientific_journal-905	administration
american_scientific_journal-905	cathinone
american_scientific_journal-905	journal
american_scientific_journal-905	catha