Wan, Qiansu, Zhuo Zou, and Lirong Zheng. “Life Cycle Assessment of Paper Based Printed Interconnections for ECG Monitoring”. European Journal of Engineering and Technology Research 2, no. 6 (June 27, 2017): 65–70. Accessed July 6, 2024. https://ej-eng.org/index.php/ejeng/article/view/382.