1. Diphtheria epidemic-new independent states of the former Soviet Union, 1990-1994;Centers for Disease Control.;Morbid. Mortal. Weekly Rep.,1995
2. Pursuit of the Corynebacterium striatum type strain;Coyle M. B.;J. Clin. Microbiol.,1993
3. Microbiology and epidemiology of diphtheria;Efstratiou A.;Rev. Med. Microbiol.,1996
4. Non-toxigenic Corynebacterium diphtheriae var gravis in England;Efstratiou A.;Lancet,1993
5. Efstratiou A. and P. A. C. Maple. 1994. Manual for the laboratory diagnosis of diphtheria. The Expanded Programme on Immunization in the European Region of WHO. ICP/EPI038(C). World Health Organization.