english: Well, in order for a clinical trial to generate valid and widely applicable results, they need to be conducted with large numbers of study participants and preferably on a population with a high incidence of new HIV infections.
non_english: Pa, da bi klinička istraživanja proizvela validne i široko primjenjive rezultate, ona moraju biti sprovedena sa velikim  brojem učesnika i poželjno, na populaciji sa velikom incidencijom novih HIV zaraženih.