1. The Generation R Study Group (M.M., T.I.M.K., S.S.-T., R.G., V.W.V.J.), 3015 GE Rotterdam, The Netherlands
2. Departments of Internal Medicine (M.M., T.I.M.K., Y.B.d.R., W.E.V., T.J.V., R.P.P.), 3015 GE Rotterdam, The Netherlands
3. Departments of Obstetrics and Gynecology (S.S.-T., W.V., E.A.P.S.), 3000 DR Rotterdam, The Netherlands
4. Epidemiology (R.G., A.H., V.W.V.J.), 3015 GE Rotterdam, The Netherlands
5. Pediatrics (R.G., S.M.P.F.d.M.K.-S., J.J.B.-S., H.T., V.W.V.J.), 3000 DR Rotterdam, The Netherlands
6. Clinical Chemistry (Y.B.d.R.), 3000 DR Rotterdam, The Netherlands
7. Immunology (H.H.), Erasmus Medical Center, 3015 GE Rotterdam, The Netherlands
8. Child and Adolescent Psychiatry (H.T.), Erasmus Medical Center, Sophia Children's Hospital, 3000 DR Rotterdam, The Netherlands