Postnatal women's breastfeeding beliefs, practices, and support during the COVID-19 pandemic: a cross-sectional comparative study across five countries.

"Declarations Ethics approval and consent to participateEthics approval was obtained from the Ethical Committee of Universidade Federal de São Paulo in Brazil (n. 4.858.900), Psychiatry Nursing and Midwifery Research Ethics Subcommittee at King’s College London in the UK (HR / DP-20 / 21-22651, RESCM-20 / 21-22651), Institutional Review Board of the National Yang Ming Chiao Tung University in Taiwan (n. YM110060E), Institutional Review Board of Institute for Population and Social Research at Mahidol University in Thailand (n. 2021 / 03-042), and Institutional Review Board of Catholic Kkottongnae University in South Korea (n. 2-7008080-A-N-01-202103-HR-003). Consent for publicationNot applicable Competing interestsThe authors declare that they have no conflicts of interest. KPC is an Editorial Board member of IBJ but did not participate in the review of this manuscript. Competing interests The authors declare that they have no conflicts of interest. KPC is an Editorial Board member of IBJ but did not participate in the review of this manuscript."

"Funding This research project is supported by Mahidol University, Thailand."