title: The incidence of farmer's lung in Caithness.
mesh_terms: D000192:Actinomycetales / Q000302:isolation & purification; D000328:Adult; D000368:Aged; D003168:Complement Fixation Tests; D005203:Farmer's Lung / Q000453:epidemiology* / Q000209:etiology / Q000382:microbiology; D005260:Female; D006801:Humans; D005779:Immunodiffusion; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012606:Scotland; D014887:Weather