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ON THE CONTAMINATION OF CELL CULTURES BY LEPTOSPIRA BIFLEXA = CONTAMINATION DES CULTURES DE CELLULES PAR L.B.TUMILOWICZ JJ; ALEXANDER AD; STAFFORD K et al.1974; IN VITRO; U.S.A.; DA. 1974; VOL. 10; NO 3-4; PP. 238-242; BIBL. 14REF.Article

PRESERVATION OF LEPTOSPIRAS BY LIQUID-NITROGEN REFRIGERATIONALEXANDER AD; LESSEL EF; EVANS LB et al.1972; INTERNATION. J. SYST. BACTERIOL.; U.S.A.; DA. 1972; VOL. 22; NO 3; PP. 165-169; BIBL. 15REF.Serial Issue

PATHOGENIC LEPTOSPIRAS ISOLATED FROM MALAYSIAN SURFACE WATERSALEXANDER AD; EVANS LB; BAKER MF et al.1975; APPL. MICROBIOL.; U.S.A.; DA. 1975; VOL. 29; NO 1; PP. 30-33; BIBL. 9REF.Article

AN UNUSUAL LEPTOSPIRA, SEROTYPE ILLINI (A NEW SEROTYPE)HANSON LE; TRIPATHY DN; EVANS LB et al.1974; INTERNATION. J. SYST. BACTERIOL.; U.S.A.; DA. 1974; VOL. 24; NO 3; PP. 355-357; BIBL. 11REF.Article

BESOINS EN MATIERE DE RECHERCHES SUR LA LEPTOSPIROSEABDUSSALAM M; ALEXANDER AD; BABUDIERI B et al.1972; BULL. ORGANIS. MOND. SANTE; SUISSE; DA. 1972; VOL. 47; NO 5; PP. 641-650; BIBL. 42REF.Serial Issue