%0 Journal Article %A Gareth Iestyn Walters %A P Sherwood Burge %A Simon E Trotter %A Prabavathi Naidoo %A Richard D Thompson %A Alastair S Robertson %T Occupational COPD and emphysema: two case histories %D 2019 %R 10.3399/bjgp19X700625 %J British Journal of General Practice %P 42-43 %V 69 %N 678 %U https://bjgp.org/content/bjgp/69/678/42.full.pdf