Delayed treatment 2 Envenomation 2 Mortality 2 Snakebite Suboptimal care 2 Asia 1 Bungarus Lividus 1 Naja naja 1 Review 1 Viet Nam 1 antibiotic agent 1 cause of death 1 data extraction 1 emergency care 1 envenomation 1 health care quality 1 human 1 incidence 1 medical care 1 medical staff 1 meta analysis 1 mortality 1 mortality rate 1 quality control 1 snake venom 1 snakebite 1 systematic review 1 victim 1