1 Amsterdam Reproduction and Development Research Institute (Jansen, Dean, Painter), Amsterdam; Department of Obstetrics and Gynecology (Jansen), Erasmus MC, Rotterdam, the Netherlands; School of Nursing and Midwifery, Faculty of Health (Shaw), University of Plymouth, UK; Department of Obstetrics and Gynecology (Grooten), Amsterdam UMC, University of Amsterdam; Department of Epidemiology & Data Science (Koot), Amsterdam UMC, Vrije Universiteit Medical Centre, Amsterdam, the Netherlands; Pregnancy Sickness Support (Dean), UK; Department of Obstetrics and Gynecology (Painter), Amsterdam UMC, Vrije Universiteit, Amsterdam, the Netherlands l.a.w.jansen@amsterdamumc.nl.
2 Amsterdam Reproduction and Development Research Institute (Jansen, Dean, Painter), Amsterdam; Department of Obstetrics and Gynecology (Jansen), Erasmus MC, Rotterdam, the Netherlands; School of Nursing and Midwifery, Faculty of Health (Shaw), University of Plymouth, UK; Department of Obstetrics and Gynecology (Grooten), Amsterdam UMC, University of Amsterdam; Department of Epidemiology & Data Science (Koot), Amsterdam UMC, Vrije Universiteit Medical Centre, Amsterdam, the Netherlands; Pregnancy Sickness Support (Dean), UK; Department of Obstetrics and Gynecology (Painter), Amsterdam UMC, Vrije Universiteit, Amsterdam, the Netherlands.