Pang, Y., Li, Y., Kui, G., Tang, Y., Liao, M., Wang, Y., . . . Zhu, Q. (2018). Efficacy of a Chinese Herbal Medicine Compound Zhangpi Ointment against Hydroxyurea-Induced Leg Ulcers: A Prospective, Randomized, Open-Label, Controlled Clinical Trial. Hindawi. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6311290/

Pang, Yu-yang, Yan Li, Gang Kui, Yong Tang, Ming-juan Liao, Yong-ling Wang, Zhen-dong Cao, and Qi Zhu. Efficacy of a Chinese Herbal Medicine Compound Zhangpi Ointment against Hydroxyurea-Induced Leg Ulcers: A Prospective, Randomized, Open-Label, Controlled Clinical Trial. Hindawi, 2018.

Pang, Yu-yang, et al. Efficacy of a Chinese Herbal Medicine Compound Zhangpi Ointment against Hydroxyurea-Induced Leg Ulcers: A Prospective, Randomized, Open-Label, Controlled Clinical Trial. Hindawi, 2018.