RT Journal Article SR Electronic T1 COVID-19 mortality increases with northerly latitude after adjustment for age suggesting a link with ultraviolet and vitamin D JF BMJ Nutrition, Prevention & Health JO BMJ Nutrition FD BMJ Publishing Group Ltd SP bmjnph-2020-000110 DO 10.1136/bmjnph-2020-000110 A1 Jonathan Rhodes A1 Frank Dunstan A1 Eamon Laird A1 Sreedhar Subramanian A1 Rose A Kenny YR 2020 UL http://nutrition.bmj.com/content/early/2020/06/14/bmjnph-2020-000110.abstract AB