Correction: Parental epigenetic age acceleration and risk of adverse birth outcomes: the Norwegian mother, father and child cohort study - Maria C. Magnus; Yunsung Lee; Ellen Ø. Carlsen; Lise A. Arge; Astanand Jugessur; Liv G. Kvalvik; Nils-Halvdan Morken; Cecilia H. Ramlau-Hansen; Mikko Myrskylä; Per Magnus; Siri E. Håberg (BMC Medicine)