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Human intestinal protozoa in the Near East : an inquiry into some problems affecting the spread and incidence of intestinal protozoal infections of British troops and natives in the Near East, with special reference to the carrier question, diagnosis and treatment of amoebic dysentery, and an account of three new human intestinal protozoa / by C.M. Wenyon and F.W. O'Connor. Public Domain Mark. Source: Wellcome Collection.