“…Variety of associations Differentiation of the results of Machulla et al (2002) as to HLA allele combinations (original data published in Machulla et al 2002) AdultP, adult periodontitis; CP, chronic periodontitis; AP, aggressive periodontitis; JP, juvenile periodontitis, LJP, localized juvenile periodontitis; RPP, rapidly progressive periodontitis, ProfP, profound periodontitis; BD, blood doners; popul., population; no period., no periodontitis; HLA, human leukocyte antigens. (102) A11 ", A29 ", DRB1 n 13 ", A31 #, A30/31 #, DRBbl #…”