Received: 30 June 2021
Accepted: 21 January 2022
First Online: 4 February 2022
: The Institutional Review Board of the University of Pittsburgh, Human Research Protection Office, deemed the study exempt from approval. All research participants signed an informed consent document. All study methods were in accordance with relevant institutional and national ethics guidelines.
: Not applicable.
: NN and SS are members of the American Association of Birth Centers Research Committee.