Brutus, L., Watier, L., Hanitrasoamampionona, V., Razanatsoarilala, H., Cot, M. (2007)Confirmation of the protective effect of Ascaris lumbricoides on Plasmodium falciparum infection: results of a randomized trial in Madagascar, Am J Trop Med Hyg. , 77(6), pp. 1091-5.