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Liu, Wai-Yan, Martijn A. Spruit, Jeannet M. Delbressine, Paul J. Willems, Frits M. E. Franssen, Emiel F. M. Wouters, a Kenneth Meijer. "Spatiotemporal Gait Characteristics in Patients With COPD During the Gait Real-time Analysis Interactive Lab-based 6-minute Walk Test." PLoS One 2017.

Liu, Wai-Yan, et al. "Spatiotemporal Gait Characteristics in Patients With COPD During the Gait Real-time Analysis Interactive Lab-based 6-minute Walk Test." PLoS One 2017.