Hetzel J, Kreuter M, Kähler C, Kabitz H-J, Gschwendtner A, Eberhardt R, et al. Bronchoscopic performance of bronchoalveolar lavage in Germany – a call for standardization: A request for BAL standardization . Sarcoidosis Vasc Diffuse Lung Dis [Internet]. 2021 Mar. 31 [cited 2025 May 6];38(1):e2021003. Available from: https://mattioli1885journals.com/index.php/sarcoidosis/article/view/10628