1. Department of Human Genetics, Amsterdam UMC, Vrije Universiteit Amsterdam, 1007 MB Amsterdam, The Netherlands
2. Amsterdam Reproduction and Development Research Institute, Amsterdam UMC, 1100 DD Amsterdam, The Netherlands
3. Department of Child Health, Netherlands Organization for Applied Scientific Research TNO, 2333 BE Leiden, The Netherlands
4. Department for Vaccine Supply and Prevention Programmes, RIVM Dutch National Institute for Public Health and the Environment, 3720 BA Bilthoven, The Netherlands
5. Centre for Population Screening, RIVM Dutch National Institute for Public Health and Environment, 3720 BA Bilthoven, The Netherlands