3Crompton DWT.Biology of Ascaris lumbricoides[A].In:Ascariasis and its Prevention and Control[C].Taylor & Francis,1989,9.
4Stewart TB,Hale OM.Losses to internal parasites in swine production[J].J Animal Sci,1988,66:1548-1554.
5Madden PA,Tromba FG,Vetterling JM.En Face views of Ascaris suum with the scanning electron microscope[J].J Parasotol,1970,56:202-203.
6Ansel M,Thibault M.Value of specific distinction between Ascaris lumbricoides Linnaeus,1758 and Ascaris suum Goeze,1782[J].Int J Parasitol,1973,3:317-319.
7Sprent JFA.Anatomical distinction between human and pig strains of Ascaris[J].Nature,1952,120:627-628.
8Maung M.Ascaris lumbricoides Linnaeus,1758 and Ascaris suum Goeze,1782:morphological differences between specimens obtained from man and pig[J].Southeast Asian J Trop Med Pub Hlth,1973,4:41-45.
9Kurimoto H.Morphologic,biochemical and immunological studies on the differences between Ascaris lumbricoides Linnaeus,1758and Ascaris suum Goeze,1782[J].Jap J Parasitol,1974,23:251-267.
10Takata I.Experimental infection of man with Ascaris of man and the pig[J].Kitasato Archives Exp Med,1951,23:49-59.
