id	keyword
american_scientific_journal-1187	health
american_scientific_journal-1187	gadarif
american_scientific_journal-1187	age
american_scientific_journal-1187	problems
american_scientific_journal-1187	research
american_scientific_journal-1187	study
american_scientific_journal-1187	survey
american_scientific_journal-1187	years
american_scientific_journal-1187	population
american_scientific_journal-1187	sciences