Dreher, M., Price, D., Gardev, A., Peeters, P., Arora, S., van der Sar – van der Brugge, S., . . . Usmani, O. S. (2021). Patient perceptions of the re-usable Respimat ® Soft Mist™ inhaler in current users and those switching to the device: A real-world, non-interventional COPD study. Chronic Respiratory Disease, 18, 1-10. https://doi.org/10.1177/1479973120986228

Dreher, Michael, David Price, Asparuh Gardev, Pascale Peeters, Satish Arora, Simone van der Sar – van der Brugge, Richard Dekhuijzen, and Omar S. Usmani. "Patient Perceptions of the Re-usable Respimat ® Soft Mist™ Inhaler in Current Users and Those Switching to the Device: A Real-world, Non-interventional COPD Study." Chronic Respiratory Disease 18 (2021): 1-10. https://doi.org/10.1177/1479973120986228.

Dreher, Michael, et al. "Patient Perceptions of the Re-usable Respimat ® Soft Mist™ Inhaler in Current Users and Those Switching to the Device: A Real-world, Non-interventional COPD Study." Chronic Respiratory Disease, vol. 18, 2021, pp. 1-10, https://doi.org/10.1177/1479973120986228.