Shia, W.-Y., Liu, S.-M., Lee, C.-S., Lin, J.-L., Chou, C.-C., Yuasa, Y., Chang, S.-C. and Lee, W.-M. 2013. The Activity of Plasma Matrix Metalloproteinase-9 as a Marker to Reflect the Tissue Level of Mammary Glands Tumor in Dogs. The Thai Journal of Veterinary Medicine. 41, 1 (Jun. 2013), 111–118.