id	keyword
american_scientific_journal-4468	99mtc
american_scientific_journal-4468	binding
american_scientific_journal-4468	dtpa
american_scientific_journal-4468	dialysis
american_scientific_journal-4468	equilibrium
american_scientific_journal-4468	protein
american_scientific_journal-4468	ultrafiltration
american_scientific_journal-4468	method
american_scientific_journal-4468	serum
american_scientific_journal-4468	volume