1. The World Bank Data Population total, world 2016 https://data.worldbank.org/indicator/SP.POP.TOTL?end=2016&locations=1W&start=2016&view=map
2. AIDSinfo and Joint United Nations Programme on HIV/AIDS (UNAIDS) Indicators, People living with HIV, Data sheet, Number of people living with HIV, National, population children (0-14) 2016 http://aidsinfo.unaids.org?did=5581277ae9beccab3bd5a44e&r=world&t=2016&tb=d&bt=dnli&ts=0,0&tr=world&aid=5772878c9888f63937b6b1e5&sav=Population
3. World Health Organisation (WHO) Global tuberculosis report 2017 WHO Geneva, Switzerland 2017 http://apps.who.int/iris/bitstream/10665/259366/1/9789241565516-eng.pdf?ua=1