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[Oral immunization with non-viable micro-organisms or their antigens. 15. Immunogenicity from fractions of S. typhi murium bacteria in the mouse protection test]
[Oral immunization with non-viable micro-organisms or their antigens. 15. Immunogenicity from fractions of S. typhi murium bacteria in the mouse protection test]
[Article in
German]
E Birnschein et al.
Zentralbl Bakteriol Orig A.1972 Dec.