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. Author manuscript; available in PMC: 2022 Mar 14.
Published in final edited form as: Proc ACM Interact Mob Wearable Ubiquitous Technol. 2021 Sep 14;5(3):102. doi: 10.1145/3478107

Fig. 1.

Fig. 1.

(a) Picture of E4 sensor. (b) Plot showing the distribution and timeline of opioid administration events per subject (hourly-basis). If a subject was enrolled for more than 6 days (subjects 5 and 12), we used multiple rows. The Green horizontal bar indicates the start, end, and total duration of sensing data collected.