If articles met these requirements, they were categorized as "without incidence" or as "with incidence". It was documented for later review and correction, if the articles were retrieved from the search equation.
Se catalogó, en caso de cumplir con este requisito, como "sin incidencia", y en caso contrario, como "con incidencia", registrando el acontecimiento para su posterior estudio y corrección, si procedía de la ecuación de búsqueda.