Initial COVID-19-related restrictions (lockdown) in 2020 and birth outcomes in Switzerland: an observational study based on statistics of outpatient midwifery services. Swiss Medical Weekly, [S. l.], v. 155, n. 9, p. 4319, 2025. DOI: 10.57187/s.4319. Disponível em: https://smw.ch/index.php/smw/article/view/4319. Acesso em: 18 oct. 2025.