Ui Yoon Choi, Soo Young Lee, Ga Young Kwak, Sang Hyuk Ma, Joon Su Park, Hwang Min Kim, Jin Han Kang

J Korean Med Assoc.2011;54(9):979-987.   Published online 2011 September 15     DOI: http://dx.doi.org/10.5124/jkma.2011.54.9.979