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... Gingivitis , Necrotizing Ulcerative C1.252.400.388.350.400 C7.465.714.258.480.446 C1.539.424 73 ; was VINCENT'S INFECTION 1963-72 Gingival Bleeding on Probing see Periodontal Index Gingival Crevicular Fluid A12.383.500 91 ; was GINGIVAL ...