Liu, W., B. R. Choi, Y. O. Bak, L. T. Zhang, L. X. Zhou, Y. R. Huang, C. Zhao, and J. K. Park. “Cavernosum Smooth Muscle Relaxation Induced by Schisandrol A via the NO-CGMP Signaling Pathway”. Cellular and Molecular Biology, vol. 62, no. 3, Mar. 2016, pp. 115-9, https://cellmolbiol.org/index.php/CMB/article/view/829.