[1] Erasmus MC, Dept Med Microbiol & Infect Dis, Unit Res & Dev, NL-3015 CE Rotterdam, Netherlands
[2] Erasmus MC, Generat R Study Grp, NL-3015 CE Rotterdam, Netherlands
[3] Sophia Childrens Univ Hosp, Erasmus Med Ctr, Dept Pediat, Rotterdam, Netherlands
[4] Erasmus MC, Dept Epidemiol, NL-3015 CE Rotterdam, Netherlands