TY - JOUR AU - Swartz, M. N. PY - 2002 DA - 2002// TI - Attacking the pneumococcus – a hundred years’ war (perspective) JO - N Engl J Med VL - 346 UR - https://doi.org/10.1056/NEJM200203073461002 DO - 10.1056/NEJM200203073461002 ID - Swartz2002 ER - TY - STD TI - Singapore Health Promotion Board. Pneumococcal disease. [http://www.hpb.gov.sg/HOPPortal/dandc-article/8314] UR - http://www.hpb.gov.sg/HOPPortal/dandc-article/8314 ID - ref2 ER -