title: [Studies of the immunological protection of a ribosomal extract isolated from Leptospira].
mesh_terms: D000818:Animals; D006168:Guinea Pigs; D007921:Leptospira interrogans / Q000032:analysis / Q000276:immunology*; D012335:RNA, Ribosomal / Q000276:immunology*; D012269:Ribosomal Proteins / Q000276:immunology*; D014895:Weil Disease / Q000517:prevention & control*
chemical_list: D012335:RNA, Ribosomal; D012269:Ribosomal Proteins