[1] Chinese Univ Hong Kong, Hong Kong, Peoples R China
[2] Yonsei Univ, Coll Med, Seoul, South Korea
[3] Shanghai Jiao Tong Univ, Shanghai, Peoples R China
[4] UCL, London, England
[5] Univ Palermo, Palermo, Italy
[6] Univ Turin, Turin, Italy
[7] Yokohama City Univ, Yokohama, Kanagawa, Japan
[8] Wenzhou Med Univ, Wenzhou, Peoples R China
[9] Karolinska Univ Hosp, Solna, Sweden
[10] Angers Univ Hosp, Angers, France
[11] Hosp Univ Puerta de Hierro, Madrid, Spain
[12] Singapore Gen Hosp, Singapore, Singapore
[13] Univ Malaya, Kuala Lumpur, Malaysia
[14] Virgen Del Rocio Univ Hosp, Seville, Spain
[15] Virginia Commonwealth Univ, Richmond, VA 23284 USA
[16] Echosens, Paris, France
[17] Kings Coll London, London, England
[18] Univ Paris Cite, Paris, France
[19] Beth Israel Deaconess Med Ctr, Boston, MA USA
[20] Natl Hosp Org Yokohama Med Ctr, Yokohama, Kanagawa, Japan
[21] Karolinska Inst, Solna, Sweden
[22] VCU Sch Med, Richmond, VA USA
[23] Univ Birmingham, Birmingham B15 2TT, W Midlands, England