Oliver Gruebner*, Md Mobarak H Khan, Sven Lautenbach, Daniel Müller, Alexander Kraemer, Tobia Lakes and Patrick Hostert
* Corresponding author: Oliver Gruebner Oliver.Gruebner@geo.hu-berlin.de
International Journal of Health Geographics 2011, 10:36 doi:10.1186/1476-072X-10-36