Figure 5From: Cough, sarcoidosis and idiopathic pulmonary fibrosis: raw nerves and bad vibrations a, Concentration of Nerve Growth Factor in bronchoalveolar lavage fluid of patients with idiopathic pulmonary fibrosis and normal controls. b, Alveolar macrophages from patients with idiopathic pulmonary fibrosis immunostained for nerve growth factor. Courtesy of Dr Mat Jones (ref 41). Back to article page