Assaying for circulating osteopontin in practice: a technical note.

Statement of Interest: Statements of interest for E.J. Cetti, A.U. Wells and P.L. Shah can be found at www.erj.ersjournals. com/misc/statements.dtl REFERENCES 1 Lam S, Kennedy T, Unger M, et al. Localization of bronchial intraepithelial neoplastic lesions by fluorescence bronchoscopy. Chest 1998; 113: 696–702. 2 Ikeda N, Honda H, Hayashi A, et al. Early detection of bronchial lesions using newly developed videoendoscopy-based autofluorescence bronchoscopy. Lung Cancer 2006; 52: 21–27. 3 Chiyo M, Shibuya K, Hoshino H, et al. Effective detection of bronchial preinvasive lesions by a new autofluorescence imaging bronchovideoscope system. Lung Cancer 2005; 48: 307–313. 4 Travis WD, Brambilla E, Muller-Hermelink HK, eds. In: World Health Organization Classification of Tumours. Pathology and Genetics: Tumours of the Lung, Pleura, Thymus And Heart. Lyon, IARC Press, 2004. 5 Lam S, Kennedy T, Unger M, et al. Localization of bronchial intraepithelial neoplastic lesions by fluorescence bronchoscopy. Chest 1998; 113: 696–702. 6 Vermylen P, Pierard P, Roufosse C, et al. Detection of bronchial preneoplastic lesions and early lung cancer with fluorescence bronchoscopy: a study about its ambulatory feasibility under local anaesthesis. Lung Cancer 1999; 25: 161–168. 7 Ernst A, Simoff MJ, Mathur PN, et al. D-light autofluorescence in the detection of premalignant airway changes. a multicenter trial. J Bronchol 2005; 12: 133–138. 8 Aziz ZA, Wells AU, Hansell DM, et al. HRCT diagnosis of diffuse parenchymal lung disease: interobserver variation. Thorax 2004; 59: 506–511.