1. Meningococcal infections;Blohm;Medical Annals of District of Columbia,1966
2. Pediatrics;Einhorn,1972
3. Pediatrics;Einhorn,1972
4. Some recollections of the meningococcal diseases;Feldman;Journal of the American Medical Association,1972
5. Cecil-Loeb “Textbook of medicine”;Feldman,1971