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Changes in preterm birth and stillbirth during COVID-19 loc..:

Calvert, C ; Brockway, MM ; Zoega, H...
https://openaccess.sgul.ac.uk/id/eprint/115503/1/Changes%20in%20preterm%20birth%20and%20stillbirth%20during%20COVID-19%20lockdowns%20in%2026%20countries.pdf.  , 2023