@article{article, title = {{Identifying causation in hypersensitivity pneumonitis: a British perspective}}, publisher = {{BMJ}}, url = {{}}, year = {{2019}}, month = {{12}}, author = {{Barber CM and Burge PS and Feary JR and Parfrey H and Renzoni EA and Spencer LG and Walters GI and Wiggans RE}}, doi = {{10.1136/bmjresp-2019-000469}}, volume = {{6}}, journal = {{BMJ Open Respiratory Research}}, issue = {{1}}, pages = {{e000469-e000469}}, note = {{Accessed on 2025/09/19}}}