Xuefeng Cao, Guangneng Peng, Xiaobin Gu, Changliang He, Guizhou Yue, Jun Shi and Zhijun Zhong, 2019. Development and Clinical Evaluation of a Direct Amplification Method to Diagnose Canine Parvovirus and Canine Distemper Viral Infections in Dogs without Nucleic Acid Extraction. Pakistan J. Zool., 51, 1843-1852. DOI: http://dx.doi.org/10.17582/journal.pjz/2019.51.5.1843.1852