RT Journal Article SR Electronic T1 Correction: Effect of national guidance on survival for babies born at 22 weeks’ gestation in England and Wales: population based cohort study JF BMJ Medicine JO bmjmed FD BMJ Publishing Group Ltd SP e000579corr1 DO 10.1136/bmjmed-2023-000579corr1 VO 2 IS 1 YR 2023 UL http://bmjmedicine.bmj.com/content/2/1/e000579corr1.abstract