Department;
of;
Internal;
Medicine;
I;
Klinikum;
Saarbrücken;
Winterberg;
1;
D-66119;
Saarbrücken;
and;
Department;
of;
Psychosomatic;
Medicine;
and;
Psychotherapie;
Technische;
Universitt;
München;
Baden-Württemberg;
State;
Health;
Office;
District;
Government;
Stuttgart;
Gastroenterology;
and;
Gastrointestinal;
Cancer;
St.;
Anna;
Hospital;
Obere;
Waiblinger;
Starβe;
101;
D-70374;
Stuttgart;
Germany;
and;
Department;
of;
Internal;
Medicine;
1;
Universittskliniken;
Tübingen;
Department;
of;
Internal;
Medicine;
1;
Department;
of;
Medical;
Psychology;
and;
Medical;
Sociology;
Universitt;
Leipzig;