1. Central Blood Laboratory Center, Korean Red Cross/Quality Management Team, Seoul, Korea
2. Blood Transfusion Research Institute, Korean Red Cross/TTI Research Team, Wonju, Korea
3. Central Blood Laboratory Center, Korean Red Cross, Seoul, Korea
4. Daejeon Sejong Chungnam Blood Center, Korean Red Cross, Busan, Korea
5. Nambu Blood Laboratory Center, Korean Red Cross, Daejeon, Korea
6. Jungbu Blood Laboratory Center, Korean Red Cross, Daejeon, Korea