Xiaodan Zhang Liping Jing Xiaohua Hu Michael K. Ng Jiali Xia Jiangxi Xiaohua Zhou Medical Document Clustering Using Ontology-Based Term Similarity Measures. 62-73 2008 4 IJDWM 1 http://www.igi-pub.com/articles/details.asp?ID=7705 db/journals/jdwm/ijdwm4.html#ZhangJHNJZ08