Schuurmans, A. A. T., de Looff, P., Nijhof, K. S., Rosada, C., Scholte, R. H. J., Popma, A., & Otten, R. (2020). Validity of the Empatica E4 Wristband to Measure Heart Rate Variability (HRV) Parameters: A Comparison to Electrocardiography (ECG). J Med Syst.

Schuurmans, Angela A. T., Peter de Looff, Karin S. Nijhof, Catarina Rosada, Ron H. J. Scholte, Arne Popma, et Roy Otten. "Validity of the Empatica E4 Wristband to Measure Heart Rate Variability (HRV) Parameters: A Comparison to Electrocardiography (ECG)." J Med Syst 2020.

Schuurmans, Angela A. T., et al. "Validity of the Empatica E4 Wristband to Measure Heart Rate Variability (HRV) Parameters: A Comparison to Electrocardiography (ECG)." J Med Syst 2020.