000 00304nam a2200133Ia 4500
008 200504s9999 xx 000 0 und d
082 _a610
100 _aSamuel(J)
245 3 _aAn Aid To Gastrointestinal Endoscopy
250 _a15
260 _bParas
_c2000
300 _eNO
650 _aGastroenterology
999 _c8074
_d8074