1. Three-year multicenter surveillance of systemic pneumococcal infections in children;Kaplan;Pediatrics,1998
2. Advisory Committee on Immunisation Practices. Preventing pneumococcal disease among infants and young children. Atlanta: Center for Disease Control, 6 October 2000. Report No. 49(RR09).
3. Pediatric, invasive pneumococcal disease in Switzerland, 1985–1994;Venetz;Int. J. Epidemiology,1998
4. Emergence of drug-resistant pneumococcal infections in the United States;Breiman;JAMA,1994
5. Mühlemann K, Täuber MG, Bodmer T. Nationwide Surveillance of Pneumococcal Resistance among Swiss Children. In: Proceedings of the 40th Interscience Conference on Antimicrobial Agents and Chemotherapy 2000, Toronto, Ont., Canada, Conifer Information System; 2000. p. 114.