%0 Journal Article %K water %K WASH %K socioeconomic %K sanitation hygiene %K Indicators %B Bulletin of the World Health Organization %D 2016 %G eng %N 2 %P 111-121 %R http://dx.doi.org/10.2471/BLT.15.162974 %T Drinking water and sanitation: progress in 73 countries in relation to socioeconomic indicators. %U http://www.who.int/bulletin/volumes/94/2/15-162974.pdf %V 94