538,920 HEIJL LARS Some effects of antimicrobial therapy on plaque and gingivitis in dogs. Goteborg 1981 [druk.:] Gotab, Kungalv 8o s. 43, nlb. 1, prac 4, il. + wkł. s. nlb. 2 Akad. avhandling Univ. of G6‘teborg, Dep.of Periodontology