[1] Univ Amsterdam, Canc Ctr Amsterdam, Amsterdam UMC, Dept Surg, Amsterdam, Netherlands
[2] Univ Amsterdam, Canc Ctr Amsterdam, Amsterdam UMC, Dept Gastroenterol & Hepatol, Amsterdam, Netherlands
[3] Leiden Univ, Dept Surg, Med Ctr, Leiden, Netherlands
[4] Jeroen Bosch Hosp, Dept Surg, Shertogenbosch, Netherlands
[5] Maasstad Hosp, Dept Gastroenterol & Hepatol, Rotterdam, Netherlands
[6] Erasmus MC Univ Med Ctr, Dept Gastroenterol & Hepatol, Rotterdam, Netherlands
[7] Maastricht Univ Med Ctr, Dept Surg, Maastricht, Netherlands
[8] Onze Lieve Vrouw Hosp, Dept Surg, Amsterdam, Netherlands
[9] Radboud Univ Nijmegen Med Ctr, Dept Gastroenterol & Hepatol, Nijmegen, Netherlands
[10] Erasmus MC Univ Med Ctr, Dept Surg, Rotterdam, Netherlands
[11] Isala, Dept Gastroenterol & Hepatol, Zwolle, Netherlands
[12] Catharina Hosp, Dept Surg, Eindhoven, Netherlands
[13] Vrije Univ Amsterdam, Canc Ctr Amsterdam, Dept Surg, Amsterdam UMC, Amsterdam, Netherlands
[14] Tjongerschans, Dept Gastroenterol & Hepatol, Heerenveen, Netherlands
[15] Univ Groningen, Univ Med Ctr Groningen, Dept Hepatobiliary Surg & Liver Transplantat, Groningen, Netherlands
[16] St Antonius Hosp Nieuwegein, Reg Acad Canc Ctr Utrecht, Dept Surg, Utrecht, Netherlands
[17] Reinier de Graaf Ziekenhuis, Dept Gastroenterol & Hepatol, Delft, Netherlands
[18] Amphia Hosp, Dept Gastroenterol & Hepatol, Breda, Netherlands
[19] Radboud Univ Nijmegen Med Ctr, Dept Surg, Nijmegen, Netherlands
[20] Med Spectrum Twente, Dept Gastroenterol & Hepatol, Enschede, Netherlands
[21] St Antonius Hosp Nieuwegein, Reg Acad Canc Ctr Utrecht, Dept Gastroenterol & Hepatol, Utrecht, Netherlands