1. Surface tonsillar microflora versus deep tonsillar microflora in recurrent acute tonsillitis;Rosen, G.; Samuel, J.; Vered, I.;J Laryngol Otol,1977
2. The cause of tonsillitis;Everett, M.T.;Practitioner,1979
3. Cowan and Steel's manual for the identification ofmedical bacteria;Cowan, S.T.,1974
4. Anaerobe laboratory manual;Holdeman, L.V.; Cato, E.P.; Moore, W.E.C.,1977
5. Anaerobes in the mouth;Hardie, J.,1974