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2. The incidence of farmer's lung in Caithness;Boyd, D.H.A.;Scot MedJ,1971
3. Chest symptoms in farming communities with special reference to farmer's lung;Morgan, D.C.; Smyth, J.T.; Lister, R.W.;Br J Ind Med,1975
4. Prevalence of farmer's lung in Scotland: a pilot survey;Grant, I.W.B.; Blyth, W.; Wardrop, V.E.; Gordon, R.M.; Pearson, J.C.G.; Mair, A.;Br MedJ,1972
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