topics characterized as pseudoscience References and notes Further reading Owen, William, "Warburg's Tincture in Indian Fevers", article, Dublin Journal of Medical Science, 1879. pp. 11–16. Secondary/tertiary sources Wootton, A. (1910), Chronicles of Pharmacy, pp. 206–208. Poser, Charles M.; Bruyn, G. W. (1999), An Illustrated History of Malaria, p. 87. Sparkes, Roland - article, 'Dr Carl Warburg, his Belmont laboratory, and his famous fever drug', 2003/2009, History of medicine Quinine Antimalarial agents Tinctures Historical polysubstance drinks