Bear bile: dilemma of traditional medicinal use and animal protection
Yibin Feng, Kayu Siu, Ning Wang, Kwan-Ming Ng, Sai-Wah Tsao, Tadashi Nagamatsu, and Yao Tong
J Ethnobiol Ethnomed. 2009; 5: 2. Published online 2009 January 12. doi: 10.1186/1746-4269-5-2.PMCID: PMC2630947