Yan, Laixing, Ketao Li, Weiwei Zhang, Chengji Shen, Liping Ma, and Yu Sun. “The Relationship Between Phosphodiesterase 4D Gene Polymorphism and Coronary Heart Disease”. Cellular and Molecular Biology 67, no. 6 (February 27, 2022): 26–32. Accessed March 29, 2024. https://cellmolbiol.org/index.php/CMB/article/view/4147.