000 00336nam a2200133Ia 4500
008 200512s9999 xx 000 0 und d
082 _a617
100 _aNorton greenberger
245 0 _aCurrent diagnosis & treatment gastroenterology, hepatology & endoscopy
250 _a_
260 _bMgh
_c2009
440 _v_
650 _asurgery
999 _c52564
_d52564