Authors:
Normark, BH
Ortqvist, A
Kalin, M
Olsson-Liljequist, B
Hedlund, J
Svenson, SB
Kallenius, G
Citation: Bh. Normark et al., Changes in serotype distribution may hamper efficacy of pneumococcal conjugate vaccines in children, SC J IN DIS, 33(11), 2001, pp. 848-850