id	keyword
american_scientific_journal-3076	fish
american_scientific_journal-3076	parasites
american_scientific_journal-3076	internal
american_scientific_journal-3076	prevalence
american_scientific_journal-3076	cestodes
american_scientific_journal-3076	study
american_scientific_journal-3076	species
american_scientific_journal-3076	niloticus
american_scientific_journal-3076	journal
american_scientific_journal-3076	gariepinus
american_scientific_journal-3076	research
american_scientific_journal-3076	sciences