Jirawan Bunbabchong. (1997) Side effects of intraspinal opioids. <i>Journal of Medicine and Health Sciences</i>, <i>4</i>(1), 37-42.Jirawan Bunbabchong. "Side effects of intraspinal opioids". Journal of Medicine and Health Sciences 4 (1997):37-42.Jirawan Bunbabchong. Side effects of intraspinal opioids. Faculty of Medicine,Srinakharinwirot University:ม.ป.ท. 1997.