Atkins, Christopher P, et al. “Measuring Activity in Patients With Sarcoidosis - a Pilot Trial of Two Wrist-Worn Accelerometer Devices”. Sarcoidosis, Vasculitis and Diffuse Lung Diseases, vol. 35, no. 1, Apr. 2018, pp. 62-68, https://doi.org/10.36141/svdld.v35i1.5848.