- Toll-like receptor (TLR) polymorphisms in African children: Common TLR-4 variants predispose to severe malaria. Mockenhaupt, F.P., Cramer, J.P., Hamann, L., Stegemann, M.S., Eckert, J., Oh, N.R., Otchwemah, R.N., Dietz, E., Ehrhardt, S., Schröder, N.W., Bienzle, U., Schumann, R.R. Proc. Natl. Acad. Sci. U.S.A. (2006)