Maret-Ouda John, Markar Sheraz R, Lagergren Jesper
Upper Gastrointestinal Surgery, Department of Molecular Medicine and Surgery, Karolinska Institutet, and Karolinska University Hospital, Stockholm, Sweden.
JAMA. 2020 Dec 22;324(24):2565. doi: 10.1001/jama.2020.21573.