Attitude towards Older People According to Sociodemographic and Educational Variables in Students of a Chilean University oleh Rodrigo Yáñez-Yáñez, Maria Antonia Parra-Rizo, Nelson McArdle-Draguicevic, Nathalie Valdés-Valdés, Gabriel A. Rojas, Leslith Gamín, Paulina Lorca, Francisca Acevedo-Carrizo, Rafael Zapata-Lamana, Caterin Diaz-Vargas, Igor Cigarroa