538,920 HEIJL LARS Some effects of antimicrobial therapy on plaque and gingivitis in dogs. Göteborg 1981 /druk.:/ Gotab, Kungälv 8° s. 43, nlb. 1, prac 4, il. + wkł. s. nlb. 2 Akad. avhandling Univ. of Goteborg, Dep.of Periodontology