Affiliations

• ¹ Department of Obstetrics, Leiden University Medical Center, Leiden 2333 ZA, Netherlands. Electronic address: e.j.t.verweij@lumc.nl.
• ² Department of Obstetrics, Haramaya University, College of Health and Medical Sciences, Hiwot Fana Comprehensive Specialized University Hospital, Harrar, Ethiopia.
• ³ Department of Obstetrics, Pediatrics, and Pathology, Kilimanjaro Christian Medical Center, Moshi, Tanzania.
• ⁴ Department of Pediatrics and Child Health, Kamuzu University of Health Sciences, Blantyre, Malawi.
• ⁵ Department of Obstetrics, Leiden University Medical Center, Leiden 2333 ZA, Netherlands.
• ⁶ WIRhE, New York, NY, USA; Laboratory of Transfusion Biology, Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, USA.
• ⁷ WIRhE, Amsterdam, Netherlands; Department of Experimental Immunohematology, Sanquin Research, Amsterdam, Netherlands.
• ⁸ Department of Obstetrics, Leiden University Medical Center, Leiden 2333 ZA, Netherlands; Athena Institute, VU University, Amsterdam, Netherlands.