1Department of Environmental Medical Biology, Yonsei University College of Medicine, Seoul 120-752, Korea.
25th Medical Detachment, 168th Multifunctional Medical Battalion, 65th Medical Brigade, Unit 15247, APO AP 96205-5247, USA.
3Suncheon-si Health Service Center, Suncheon 540-972, Korea.
4Department of Clinical Pathology, Shinheung College, Uijeongbu 480-701, Korea.
5National Institute of Biological Resources, Inchoen 404-708, Korea.
6Force Health Protection and Preventive Medicine, 65th Medical Brigade/US Army MEDDAC-Korea, Unit #15281, APO AP 96205-5281, USA. JFIF d d Ducky d qhttp://ns.adobe.com/xap/1.0/