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nih.gov
ncbi.nlm.nih.gov
Davey G, Tekola F, Newport MJ (2 december 2007). ”Podoconiosis: non-infectious geochemical elephantiasis”. Trans R Soc Trop Med Hyg "101": ss. 1175–80. doi:10.1016/j.trstmh.2007.08.013. PMID 17976670.