000 00312nam a2200097Ia 4500
008 220809s2000 xx 000 0 und d
041 _aeng
245 _aGastroenterology Clinics of North America: High risk Gastrointestinal Bleeding Vol.29, No.1, March 2000
260 _aLondon
_bWBS
_c2000
520 _aBack Volume
999 _c161453
_d161453