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APA Citation
Vandeplas, G., Khan, A., Huynh, T., Tomassen, P., van Zele, T., Cardell, L., Arebro, J., Olze, H., Foerster, U., Kowalski, M., Olszewska-Ziąber, A., Fokkens, W., van Drunen, C., Mullol, J., Hellings, P., Hox, V., Toskala, E., Scadding, G., Lund, V., & Bachert, C. (2015). the 'GA²LEN Sinusitis Cohort': an introduction. Clinical and translational allergy, 5(4), 1–2. http://access.bl.uk/ark:/81055/vdc_100080434925.0x0004b0