Britten Nicky, Ekman Inger, Naldemirci Öncel, Javinger Mikaela, Hedman Håkan, Wolf Axel
Institute of Health Research, University of Exeter Medical School, Exeter, UK.
Institute of Health and Care Sciences, University of Gothenburg, Gothenburg, Sweden.
BMJ. 2020 Sep 1;370:m2738. doi: 10.1136/bmj.m2738.