Xiu, Y.-F. ., Y.- li . Liu, C.-S. . Lin, C.-H. . Chou, and C.-C. . Liu. “Changes in Serum Steroid Levels in Female Red Pandas”. Canadian Journal of Agriculture and Crops, vol. 4, no. 2, Sept. 2019, pp. 136-43, doi:10.20448/803.4.2.136.143.