(Q43531478)
Statements
Impact of vitamin A supplementation on health status and absenteeism of school children in Sri Lanka (English)
Sanath Thushara Chamakara Mahawithanage
Kannangara Koralalage Nalin Priyadarshana Kannangara
Renu Wickremasinghe
Udumalagala Gamage Chandrika
Errol R Jansz
Ananda Rajitha Wickremasinghe