Received: 19 November 2020
Accepted: 16 March 2021
First Online: 31 March 2021
: The study was approved by the Research Ethics Committee of the Medicine School in Ribeirão Preto, University of São Paulo, Brazil (CAAE: 31357320.9.1001.5440–4.066.741/2020) and from the Brazilian hospitals and maternal services.
: Not applicable.
: All authors have declared no potential conflicts of interest regarding the research.