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- [7] CONTACT SENSITIVITY IN GUINEA-PIGS TO DIFFERENT PENICILLINS INTERNATIONAL ARCHIVES OF ALLERGY AND APPLIED IMMUNOLOGY, 1982, 69 (04): : 316 - 321
- [8] VARIATION IN SENSITIVITY TO PENICILLINS AND CEPHALOSPORINS OF STREPTOCOCCI OF DIFFERENT SEROTYPES JOURNAL OF APPLIED BACTERIOLOGY, 1977, 43 (03): : R17 - R18