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Activated lymphocyte subsets in adult periodontitis.
Afar B, Engel D, Clark EA. Afar B, et al. Among authors: engel d. J Periodontal Res. 1992 Mar;27(2):126-33. doi: 10.1111/j.1600-0765.1992.tb01814.x. J Periodontal Res. 1992. PMID: 1372351
Polyclonal B-cell activation in periodontitis.
Tew J, Engel D, Mangan D. Tew J, et al. Among authors: engel d. J Periodontal Res. 1989 Jul;24(4):225-41. doi: 10.1111/j.1600-0765.1989.tb01787.x. J Periodontal Res. 1989. PMID: 2528622 Review.
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