Hammersmith Hosp, London, England UCL, London, England Linkoping Univ Hosp, S-58185 Linkoping, Sweden Hop Edouard Herriot, Lyon, France Hadassah Univ Hosp, IL-91120 Jerusalem, Israel Osped San Martino Genova, Genoa, Italy Univ Leipzig, D-7010 Leipzig, Germany Huddinge Univ Hosp, S-14186 Huddinge, Sweden.