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- [26] INFLUENCE OF DIFFERENT COMPONENTS OF STORED-BLOOD ON INFECTIVITY OF TREPONEMA-PALLIDUM (NICHOLS STRAIN) IMMUNITAT UND INFEKTION, 1978, 6 (05): : 199 - 202
- [28] LYMPHOCYTE-TRANSFORMATION IN INBRED GUINEA-PIGS INFECTED WITH TREPONEMA-PALLIDUM NICHOLS INTERNATIONAL ARCHIVES OF ALLERGY AND APPLIED IMMUNOLOGY, 1985, 76 (03): : 266 - 269