[1] Kliniken Hirslanden Beau Site Salem & Permanence, Dept Allgemeine Innere Med DAIM, Schanzlihalde 11, CH-3036 Salem, Switzerland
[2] Univ Klinikum Tubingen, Med Klin 1, Klin Gastroenterol Gastrointestinale Onkol Hepato, Tubingen, Germany
[3] Sonodiaktika, Langenfeld, Germany
[4] Med Hsch Brandenburg, Brandenburg Inst Klin Ultraschall, Neuruppin, Germany
[5] HELIOS Klinikum Meiningen, Klin Innere Med 2, Meiningen, Germany
[6] Beth Israel Deaconess Med Ctr, Boston, MA 02215 USA
[7] Ctr Sanda Val Mustair, Sta Maria, Switzerland
[8] Univ Notfallzentrum, Inselspital Universtatssp Bern, Bern, Switzerland
[9] Sanda Val Mustair, Ctr Sta Maria, Val Mustair, Switzerland
[10] Med Hsch Brandenburg, Brandenburg Inst Klin Ultraschall, Neuruppin, Germany
[11] Med Hsch Brandenburg, Fak Gesundheitswissensch, Neuruppin, Germany
[12] Med Univ Wien, Univ Klin Radiol & Nuklearmed, Vienna, Austria
[13] Hirslanden Klin Hirslanden, Zurich, Switzerland
[14] Internist Hausarztpraxis, Stralsund, Germany
[15] Krankenhaus Markisch Oderland GmbH, Innere Med, Strausberg, Germany