[1] Freie Universität Berlin,
[2] Universitätsklinikum Benjamin Franklin,undefined
[3] Abteilung Innere Medizin/Gastroenterologie und Infektiologie,undefined
[4] Hindenburgdamm 30,undefined
[5] D-12000 Berlin,undefined
[6] Germany,undefined
[7] National Institutes of Health,undefined
[8] Cell Biology Section,undefined
[9] Building 10,undefined
[10] Room 9C-193,undefined
[11] Bethesda,undefined
[12] Maryland 20892,undefined
[13] USA,undefined
[14] Service d’Hépato-Gastroentérologie,undefined
[15] C.H.U. Bichat-Claude Bernard,undefined
[16] 46 rue Henri Huchard,undefined
[17] F-75877 Paris 18,undefined
[18] France,undefined
[19] Department of Surgery,undefined
[20] Yale University,undefined
[21] School of Medicine,undefined
[22] P.O. Box 20 80 62,undefined
[23] New Haven,undefined
[24] Connecticut 06520-8062,undefined
[25] USA,undefined
[26] Department of Internal Medicine,undefined
[27] Endocrine Unit University Hospital,undefined
[28] S-75185 Uppsala,undefined
[29] Sweden,undefined
[30] Washington University,undefined
[31] School of Medicine,undefined
[32] Section of Endocrine and Oncologic Surgery,undefined
[33] 660 South Euclid Avenue,undefined
[34] Campus Box 8109,undefined
[35] St. Louis,undefined
[36] Missouri 63110,undefined
[37] USA,undefined