title: Classification and identification of Actinobacillus actinomycetemcomitans and haemophilus aphrophilus by cluster analysis and deoxyribonucleic acid hybridizations.
mesh_terms: D000188:Actinobacillus / Q000145:classification* / Q000235:genetics; D004247:DNA / Q000096:biosynthesis; D006190:Haemophilus / Q000145:classification* / Q000235:genetics; D006801:Humans; D006824:Hybridization, Genetic; D010510:Periodontal Diseases / Q000382:microbiology*; D010641:Phenotype
chemical_list: D004247:DNA