Rees, CA; Hooli, S; King, C; McCollum, ED; Colbourn, T; Lufesi, N; Mwansambo, C; ... World Health Organization PREPARE study group48, .; + view all (2021) External validation of the RISC, RISC-Malawi, and PERCH clinical prediction rules to identify risk of death in children hospitalized with pneumonia. Journal of Global Health , 11 , Article 04062. 10.7189/jogh.11.04062. Green open access