Hetzel, J., Kreuter, M., Kähler, C., Kabitz, H.-J., Gschwendtner, A., Eberhardt, R., Costabel, U. and Darwiche, K. (2021) “Bronchoscopic performance of bronchoalveolar lavage in Germany – a call for standardization: A request for BAL standardization ”, Sarcoidosis Vasculitis and Diffuse Lung Disease, 38(1), p. e2021003. doi: 10.36141/svdld.v38i1.10628.