1. Electronics and Telecommunications Research Institute, Diagnostic Device Research Section, Daejeon, Republic of KoreabChungnam National University, Department of Physics, Daejeon, Republic of Korea
2. Electronics and Telecommunications Research Institute, Diagnostic Device Research Section, Daejeon, Republic of Korea
3. Chungnam National University, Department of Physics, Daejeon, Republic of Korea
4. Alpinion Medical System Co., Ltd., Probe Development Team, Seoul, Republic of Korea
5. Seoul National University Hospital, Radiology of Breast Care Center, Seoul, Republic of Korea