[1] Kliniken Hirslanden Beau Site, Dept Allgemeine Innere Med DAIM, Salem & Permanence, Schanzlihalde 11, CH-3013 Bern, Switzerland
[2] Caritas Krankenhaus Bad Mergentheim, Dept Internal Med 2, Bad Mergentheim, Germany
[3] Johann Wolfgang Goethe Univ Hosp, Frankfurt, Germany
[4] Vilnius Univ Hosp Santaros Klin, Childrens Hosp, Dept Radiol, Vilnius, Lithuania
[5] Med Univ Gdansk, Dept Pediat Haematol & Oncol, Gdansk, Poland
[6] Univ Sapienza Rome, Radiol Oncol & Anat Pathol Sci, Rome, Italy
[7] Kings Coll Hosp London, Kings Coll London, Dept Radiol, London, England
[8] Fudan Univ, Zhongshan Hosp, Dept Ultrasound, Shanghai, Peoples R China
[9] Hannover Med Sch, Dept Pediat Kidney Liver & Metab Dis, Hannover, Germany
[10] Heim Pal Natl Pediat Inst, Dept Radiol, Budapest, Hungary
[11] Great Ormond St Hosp Children & Univ Coll London, London, England
[12] Med Univ Warsaw, Fac Med Sci, Ultrasound Diagnost Dept, Warsaw, Poland
[13] Friedrich Alexander Univ Erlangen Nurnberg, Univ Hosp Erlangen, Dept Pediat & Adolescent Med, Erlangen, Germany
[14] Klin Gastroenterol Hepatol Diabetol & Intens Med, Krankenhaus Duren, Duren, Germany
[15] Med Univ Gdansk, Ultrasound & Biopsy Diagnost Lab, Clin Pediat Haematol & Oncol, Gdansk, Poland
[16] Univ Med Ctr Halle Saale, Clin & Policlin Radiol, Halle, Saale, Germany
[17] Royal London Hosp, Dept Diagnost Imaging, Barts Hlth NHS Trust, London, England
[18] Inst Mother & Child Hlth, Dept Diagnost Imaging, Warsaw, Poland
[19] Univ Hosp Jena, Sect Pediat Radiol, Inst Diagnost & Intervent Radiol, Jena, Germany
[20] Med Univ Gdansk, Dept Radiol, Gdansk, Poland
[21] Localinomed, Bern, Switzerland
[22] Caritas Krankenhaus Bad Mergentheim, Dept Pediat Med, Bad Mergentheim, Germany
[23] Kliniken Stadt Koln gGmbH, Kinderradiol, Cologne, Germany
[24] Tech Univ Dresden, Univ Klinikum Dresden, Childrens Hosp, Dresden, Germany