Development of a photographic food atlas as a portion estimate tool for adolescents in Sri Lanka - Karunarathna, H.M.N.J.; Wickramaarachchi, W.A.H.S.; Perera, T.; Silva, K.D.R.R.; Ranathunge, R.M.T.K.; Sitisekara, S.M.H.D.; Gelli, Aulo (CGIAR, 2023)