Funding for this research was provided by:
Wellcome Trust (095582/Z/11/Z)
Received: 3 September 2018
Accepted: 30 June 2019
First Online: 5 July 2019
Ethics approval and consent to participate
: The study was approved by the Research Ethics Committee at the Federal University of Pelotas Medical School (CEP/UFPEL) under the number 522.064. Mothers who agreed to undergo an interview entered the study after signing free informed consent. Voluntary participation was guaranteed by explaining to the participants they could withdraw from the study at any time without providing any reason. The confidentiality of the provided information was assured.
: The authors agree to the publication of this manuscript.
: The authors declare that they have no competing interests.