Lefio, Álvaro, and N. Alvarado. “Process Evaluation of a Surveillance Program of Adverse Hospital Events: Davila Clinic, Chile”. Revista Chilena De Salud Pública, vol. 15, no. 3, Dec. 2011, pp. p. 135-145, https://revistasaludpublica.uchile.cl/index.php/RCSP/article/view/17705.