Effectiveness of community and school-based sanitation interventions in improving latrine coverage: a systematic review and meta-analysis of randomized controlled interventions oleh Satoshi Igaki, Nguyen Tran Minh Duc, Nguyen Hai Nam, Tran Thi Tuyet Nga, Parshal Bhandari, Amr Elhamamsy, Caroline Ibrahim Lotify, Mostafa Elsayed Hewalla, Gehad Mohamed Tawfik, Peterson Gitonga Mathenge, Masahiro Hashizume, Nguyen Tien Huy