[1] Univ Duisburg Essen, Univ Hosp Essen, Dept Paediat 1, Neonatol,Paediat Intense Care,Pediat Neurol, D-45122 Essen, Germany
[2] Univ Duisburg Essen, Fac Med, Ctr Translat Neuro & Behav Sci, D-45122 Essen, Germany
[3] Univ Duisburg Essen, LVR Univ Hosp Essen, Clin Psychosomat Med & Psychotherapy, D-45147 Essen, Germany
[4] Bundesverband Das Fruhgeborene Kind eV, D-60598 Frankfurt, Germany
[5] Univ Duisburg Essen, Univ Hosp Essen, Bunter Kreis, D-45122 Essen, Germany