The pathogenesis of the Farmer's<unk>  disease is type 3 or type 4 hypersensitivity reaction.
Farmer's lung pathophysiology
Air embolism pathophysiology
Farmer's lung causes
Alpha 1-antitrypsin deficiency pathophysiology
Tracheitis pathophysiology
Emphysema pathophysiology
Idiopathic pulmonary fibrosis risk factors
Pulmonary edema pathophysiology