Ma1, Li, Han-Jing Zhu1, Cheng-Cheng Yao1, and Kui Lu1. “Synthesis and Properties of Enkephalin Oligonucleotide Conjugates”. Asian Journal of Chemistry 26, no. 24 (December 2, 2014): 8547–8552. Accessed December 15, 2025. https://asianpubs.org/index.php/ajchem/article/view/26_26_59.