1. Valdivieso, P., et al.: An IoT wearable device for elderly health monitoring. Sensors 19(4), 810 (2019)
2. Liu, Y., et al.: Cost-effective and wearable e-health monitoring system for elderly people. Sensors 18(11), 3736 (2018)
3. Jeong, S., et al.: Cost-effective wearable sensor platform for remote health monitoring of elderly people. Sensors 21(1), 93 (2021)
4. Chen, H., et al.: A low-cost IoT-based wearable device for elderly health monitoring. IEEE Access 7, 9319–9326 (2019)
5. Flores, M.V., et al.: A cost-effective wearable device for the health monitoring of elderly people. IEEE Access 7, 48066–48076 (2019)