Randomization
snakebite
Each hospital was considered to be a cluster. The cluster randomization was undertaken by an independent statistician. Randomisation was stratified by including the following variables: government category of hospitals (reflecting hospital size and facilities), number of snakebite admissions, and geographical areas of the hospital in relation to Kurunegala district. There were 24 hospitals randomized to the intervention group and 20 hospitals to the control group.