Funding for this research was provided by:
Eunice Kennedy Shriver National Institute of Child Health and Human Development (T32-HD007440, K23 HD102523)
The Penn Presbyterian George and Emily McMichael Harrison Fund for Research in ObGyn
Received: 12 January 2021
Accepted: 30 August 2021
First Online: 15 September 2021
: The project was approved by the University of Pennsylvania Institutional Review Board as quality improvement, and written informed consent was thereby waived.
: Not applicable.
: The authors declare that they have no competing interests.