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APA Citation
Janson, C., Malinovschi, A., Amaral, A. F., Accordini, S., Bousquet, J., Buist, A. S., Garcia-Aymerich, J., Gnatiuc, L., Tan, W., Torén, K., Zuberbier, T., & Burney, P. (2019). testing bronchodilator responsiveness. European respiratory journal, 54(6), . http://access.bl.uk/ark:/81055/vdc_100172038896.0x00008a