[1] Acad Med Ctr Amsterdam, Emma Childrens Hosp, Dept Pediat Infect Dis, Amsterdam, Netherlands
[2] Univ Med Ctr Utrecht, Wilhelmina Childrens Hosp, Dept Neonatol, Utrecht, Netherlands
[3] Univ Med Ctr Utrecht, Brain Ctr Rudolf Magnus, Utrecht, Netherlands
[4] Isala, Dept Neonatol, Zwolle, Netherlands
[5] Maxima Med Ctr Veldhoven, Dept Neonatol, Veldhoven, Netherlands
[6] Sophia Childrens Univ Hosp, Erasmus Med Ctr, Dept Neonatol, Rotterdam, Netherlands
[7] Acad Med Ctr Amsterdam, Dept Clin Virol, Amsterdam, Netherlands
[8] Acad Med Ctr Amsterdam, Emma Childrens Hosp, Dept Neonatol, Amsterdam, Netherlands