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Smith AJ, Alexander M, Mackenzie D, Lennon A, Riggio MP, MacFarlane TW.Smith AJ, et al. Among authors: riggio mp.J Clin Periodontol. 1998 Apr;25(4):334-9. doi: 10.1111/j.1600-051x.1998.tb02450.x.J Clin Periodontol. 1998.PMID: 9565286
Riggio MP, Lennon A, Roy KM.Riggio MP, et al.J Periodontal Res. 1998 Aug;33(6):369-76. doi: 10.1111/j.1600-0765.1998.tb02212.x.J Periodontal Res. 1998.PMID: 9777588