Hong, Sook Hee; Roh, Sang Young; Kim, Si Young; Shin, Sang Won; Kim, Chul Soo; Choi, Jin Hyuk; Kim, Sam Yong; Yim, Chang Yeol; Sohn, Chang Hak; Song, Hong Suk, et al.
ArticleIssue Date2011CitationJOURNAL OF PAIN AND SYMPTOM MANAGEMENT, v.41, no.1, pp.93 - 103PublisherELSEVIER SCIENCE INC