Funding for this research was provided by:
Fundació la Marató de TV3 (202106)
Received: 27 November 2021
Accepted: 24 March 2022
First Online: 21 April 2022
: Participants received information, and written consent was obtained before enrollment. All procedures were in accordance with the ethical standards approved by the Ethical Committee of the Hospital Clínico Universitario (Ref. 2020/133), the Institut de Recerca Sant Joan de Déu (Ref. PIC-94-21), and the Spanish National Research Council (Consejo Superior Investigaciones Cientificas, CSIC, Ref. 061/2021). All aspects of this study involving human participants and human samples were conducted in accordance with the 1964 Helsinki Declaration and its later amendments.
: Not applicable.
: L.A.-C. is an employee of LactApp Women Health, Barcelona, Spain. The company played no role in the conduct of this work, review, analysis, or interpretation of findings. The remaining authors declare that they have no competing interests.