A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL. The file type is application/pdf.
application/pdf
Xu-Jun Wu, Wei Zong, Yong-Mei Sun, Xin-Tian Hu, Yuan-Ye Ma, Jian-Hong Wang. "Morphine addiction in non-human primates using rhesus monkeys." Zoological Research (2013)