Epidemiology and clinical features of venomous snake bites in the Northern Amazon of Ecuador (2017-2021) - Calvopiña M; Guamán-Charco E; Ramírez K; Dávalos F; Chiliquinga P; Villa-Soxo S; Oña-Vistin R; Romero-Álvarez D (Biomedica : revista del Instituto Nacional de Salud, 2023)