JOURNAL OF KOREAN MEDICAL SCIENCE, vol. 21, no. 6, page. 1108 - 1110, 2006-12
JOURNAL OF KOREAN MEDICAL SCIENCE, vol. 21, no. 2, page. 247 - 252, 2006-04
ALLERGY, vol. 61, no. 2, page. 260 - 264, 2006-02