Examining the Acceptability of Helminth Education Packages "Magic Glasses Lower Mekong" and "Magic Glasses Opisthorchiasis" and Their Impact on Knowledge, Attitudes, and Practices Among Schoolchildren in the Lower Mekong Basin: Protocol for a Cluster Randomized Controlled Trial. - O'Connor SY; Mationg ML; Kelly MJ; Williams GM; Clements AC; Sripa B; Sayasone S; Khieu V; Wangdi K; Stewart DE; Tangkawattana S; Suwannatrai AT; et al. (JMIR research protocols, 2024)