Items where Author is "Johnston, Brian"

McKinley, Jennifer M. and Cutting, David and Anderson, Neil and Graham, Conor and Johnston, Brian and Mueller, Ute and Atkinson, Peter and van Woerden, Hugo and Bradley, Declan T. and Kee, Frank (2021) The association between community-based self-reported COVID-19 symptoms and social deprivation explored using symptom tracker apps : A repeated cross-sectional study in Northern Ireland. BMJ Open, 11 (6): e048333. ISSN 2044-6055