1 Department of Obstetrics, Leiden University Medical Centre, Leiden 2333 ZA, Netherlands. Electronic address: [email protected].
2 Department of Rheumatology and Clinical Immunology, University Medical Centre Groningen, Groningen, Netherlands; Grupo Reproducción, Departamento de Microbiología y Parasitología, Universidad de Antioquia UdeA, Medellín, Colombia.
3 Department of Obstetrics, University Medical Centre Utrecht, Utrecht, Netherlands.
4 Department of Rheumatology and Clinical Immunology, University Medical Centre Groningen, Groningen, Netherlands.
5 Department of Rheumatology and Clinical Immunology, University Medical Centre Utrecht, Utrecht, Netherlands.
6 Department of Obstetrics, Leiden University Medical Centre, Leiden 2333 ZA, Netherlands.
7 Department of Nephrology, Leiden University Medical Centre, Leiden 2333 ZA, Netherlands.
8 Department of Obstetrics, University Medical Centre Utrecht, Utrecht, Netherlands; Department of Obstetrics, Erasmus Medical Center, Rotterdam, Netherlands.