Y. Luo, Z. Hu, and K. Yu, “The Impact of the R&D Expenditure and Patent Rights towards Operating Performance in Medical Device Industry – An Empirical Study”, rcis, vol. 61, pp. 187–197, June 2018, Accessed: Nov. 07, 2026. Available: https://www.rcis.ro/journal/article/view/2438-the-impact-of-the-rad-expenditure-and-patent-rights