RT Journal Article SR Electronic T1 Breathing difficulties after covid-19: a guide for primary care JF BMJ JO BMJ FD British Medical Journal Publishing Group SP e074937 DO 10.1136/bmj-2023-074937 VO 381 A1 Evans, Rachael A1 Pick, Anton A1 Lardner, Rachel A1 Masey, Vicki A1 Smith, Nikki A1 Greenhalgh, Trisha YR 2023 UL https://www.bmj.com/content/381/bmj-2023-074937.abstract AB