BECKER, E R The distribution of sparing and protective factors in plasma fractions of ducks recovered from lophurae malaria. [electronic resource] - The Journal of infectious diseases - 16-25 p. digital Publication Type: Journal Article ISSN: 0022-1899 Standard No.: 10.1093/infdis/89.1.16 doi Subjects--Topical Terms: AnimalsDucksMalariaPlasmaProtective Factors