000 00297nam a2200133Ia 4500
008 200512s9999 xx 000 0 und d
082 _a618.1
100 _aBirnbach
245 0 _aText book of obstetric anesthesia
250 _a_
260 _bChurchill
_c-
440 _v_
650 _aobstetrics
999 _c50249
_d50249