000 00279nam a2200097Ia 4500
008 220809s1994 xx 000 0 und d
041 _aeng
245 _aOBG Clinics of North America Vol.21, No.2, June 1994
260 _aPhiladelphia
_bWB Saunders Co
_c1994
520 _aBack Volume
999 _c159634
_d159634