Enhancing air quality predictions in Chile: Integrating ARIMA and Artificial Neural Network models for Quintero and Coyhaique cities - Fidel Vallejo; Diana Yánez; Patricia Viñán-Guerrero; Luis A. Díaz-Robles; Marcelo Oyaneder; Nicolás Reinoso; Luna Billartello; Andrea Espinoza-Pérez; Lorena Espinoza-Pérez; Ernesto Pino-Cortés (PLoS ONE, 2025)