Lalli Marek, Houben Rein, Churchyard Gavin, White Richard G
<sup>1</sup>Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom.
<sup>2</sup>Aurum Health Research Unit, Head Office, Johannesburg, Gauteng, South Africa <email xmlns:xlink="" xlink:type="simple"></email>, Email:
Int J Tuberc Lung Dis. 2015 Mar;19(3):367. doi: 10.5588/ijtld.14.0852.