000			00317nam a2200133Ia 4500
008			220613s9999||||xx |||||||||||||| ||und||
100			_aPeter B Cotton
245		0	_aPractical Gastrointestinal Endoscopy
250			_a4th(1996)
260			_bBLACKWELL SCIENTIFIC
300			_a338
650			_aGastro
942			_cMEDI
999			_c3445 _d3445