Funding for this research was provided by:
Science Without Borders, Government of Brazil
Received: 13 August 2019
Accepted: 19 August 2020
First Online: 7 September 2020
Ethics approval and consent to participate
: The study was approved and granted by Human Research Ethics Committee of the University of Western Australia (RA/4/1/4492). The participants provided written consent to participation.
: Not applicable.
: The authors declare that they have no competing interests. Medela AG currently provides an unrestricted research grant to The University of Western Australia, from which DTG, SLP and CTL receive salaries.