id	keyword
american_scientific_journal-3909	liver
american_scientific_journal-3909	pmf
american_scientific_journal-3909	ccl4
american_scientific_journal-3909	rats
american_scientific_journal-3909	journal
american_scientific_journal-3909	group
american_scientific_journal-3909	cells
american_scientific_journal-3909	effect
american_scientific_journal-3909	research
american_scientific_journal-3909	changes
american_scientific_journal-3909	animals
american_scientific_journal-3909	sciences
american_scientific_journal-3909	control
american_scientific_journal-3909	technology
american_scientific_journal-3909	engineering
american_scientific_journal-3909	weight
american_scientific_journal-3909	portal