7. Kwon H, Khang G, Song HY, Lee HB, Polym.(Korea), 23(3), 421 (1999)
8. Lee HB, Khang G, Cho JC, Rhee JM, Lee JSControlled Drug Deliverty, eds. by K. Park, and R.J. Mrsny, ACS Symposium Series No. 752, p. 385, ACS, Washington, DC, 2000 (2000)
9. Khang G, Jeon JH, Lee JW, Cho SC, Lee HB, Bio-Med. Mater. Eng., 7(6), 357 (1997)
10. Holland SJ, Tighe BJ, Gould PL, J. Control. Release, 4, 155 (1986)
11. Khang G, Jeon JH, Cho JC, Rhee JM, Lee HB, Polym.(Korea), 23(6), 861 (1999)
12. Williams DF, Mort E, J. Bioeng., 1, 231 (1997)
13. Bostaman O, J. Bone Joint Surg., 73A(1), 148 (1991)