000 00290nam a2200133Ia 4500
008 200512s9999 xx 000 0 und d
082 _a617.96
100 _aDorsch
245 0 _aUnderstanding anesthesia equipment
250 _a5
260 _bWk
_c2007
440 _v_
650 _aAnesthe
999 _c47446
_d47446