Received: 26 May 2021
Accepted: 30 December 2021
First Online: 14 January 2022
: Informed consent was obtained from participants by the Maternal Fetal Tissue Bank at the University of Iowa (IRB#200910784). The University of Iowa IRB approved this study’s protocol (IRB# 201711717). All local and federal guidelines and assurances were followed.
: Not applicable.
: The authors declare that they have no competing interests.