● Shah HN,Collins DM (1990). Prevotella, a new genus to include Bacteroides melaninogenicus and related species formerly classified in the genus Bacteroides. Int. J. Syst. Bacteriol.40, 205-8. ● Holdeman LV, Moore WEC, Churn PJ, Johnson JL (1982). Bacteroides oris and Bacteroides buccae New Species from Human Periodontitis and Other Human Infections. Int. J. Syst. Bacteriol.32, 125-31.