Egyakwa Ankomah S, Fusheini A, Derrett S. Elsevier BV. Health Policy OPEN. 2021;

Pley C, Evans M, Lowe R, et al. Elsevier BV. The Lancet Planetary Health. 2021; 5 (10) : e739-e745.

Brattig NW, Graf A, Konou A, et al. Elsevier BV. Acta Tropica. 2021;

Dellar R, Ali O, Kinfe M, et al. International health. 2021;

World Health Organization , United Nations Development Programme , United Nations Children’s Fund (UNICEF) . World Health Organization. 2021;

Chirgwin H, Cairncross S, Zehra D, et al. Wiley. Campbell Systematic Reviews. 2021;

Baker MC, Bardosh K, Fitch E, et al. Oxford University Press (OUP). International Health. 2021;

World Health Organization . Weekly epidemiological record. 2021; 96 (36) : 477–484.

Eze C, Ekeke N, Alphonsus C, et al. BMC public health. 2021; 21 (1) : 1748.

World Health Organization . Weekly epidemiological record. 2021; 96 (38) : 461–476.