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2020
World Health Organization, WHO interim recommendation on obligatory hand hygiene against transmission of COVID-19. World Health Organization, Geneva, Switzerland, p. 3 pgs, 2020.
World Health Organization, WHO save lives: clean your hands in the context of COVID-19. World Health Organization, Geneva, Switzerland, p. 2 pgs, 2020.
2015
World Health Organization and UNICEF, Progress on sanitation and drinking water : 2015 update and MDG assessment. Geneva, Switzerland: World Health Organization (WHO), 2015, p. 80 p. : 11 boxes, 52 fig., tab.