▁University . ▁ ▁He ▁left ▁Ge or get own ▁University ▁in ▁ 1 9 8 2 ▁to ▁become ▁Professor ▁of ▁S urg ery ▁and ▁Director ▁of ▁the ▁Liver ▁Trans plant ▁Program ▁at ▁ ▁Dal h ous ie ▁University , ▁Hal if ax , ▁Nova ▁Scot ia , ▁Canada . ▁At ▁the ▁Queen ▁Elizabeth ▁II ▁Health ▁Sciences ▁Centre ▁and ▁I . W . K . ▁Hospital ▁for ▁Children ▁he ▁engaged ▁himself ▁for ▁ 2 4 ▁years ▁in ▁kid ney , ▁li ver ▁and ▁pan cre as ▁trans plant ation . ▁He ▁initi ated ▁successfully ▁ ▁the ▁Liver ▁Trans plant ▁Program ▁for ▁Atlantic ▁Canada , ▁then ▁Canada ' s ▁third ▁program . ▁ ▁After ▁forty ▁years ▁abroad ▁he ▁returned ▁to ▁Germany ▁to ▁assume ▁the ▁position ▁of ▁Director ▁of ▁D ial ysis ▁S urg ery , ▁Department ▁of ▁S urg ery , ▁Heidel berg ▁University ▁at ▁Mann heim ▁Medical ▁School . ▁In ▁ 2 0 1 2 , ▁Robert - B os ch - K ran ken haus , ▁Stuttgart , ▁appointed ▁him ▁Director ▁of ▁the ▁Sh unt - S urg ery ▁Center . ▁ ▁Political ▁career ▁In ▁ 1 9 9 8 , ▁B itter - Su ermann ▁was ▁elected ▁to ▁the ▁Nova ▁Scot ia ▁House ▁of ▁Assembly , ▁defe ating ▁Liberal ▁cabinet ▁minister ▁Jim ▁B ark house ▁by ▁ 1 1 0 ▁votes ▁in ▁the ▁Ch ester - St . ▁Margaret ' s ▁r iding . ▁Elect ed ▁as ▁a ▁member ▁of ▁the ▁Progress ive ▁Conserv atives , ▁B itter - Su ermann ▁broke