%0 Journal Article %T Immunological studies on experimental infection of pigs with Ascaris suum Goeze, 1782. I. An introduction with a review of the literature and the demonstration of complement-fixing antibodies in the serum. %A TAFFS LF %J J Helminthol %V 35 %N 0 %D 1961 %M 14039611 %F 1.866 %R 10.1017/s0022149x00004715 %X