000 00271nam a22001217a 4500
020 _a3921817900
050 _aMED RG137.5
_bS25
100 _aSchulz, W.
245 _aHormonal contraception
260 _aBerlin
_bSchering AG
_c1996
300 _a{ } p.
_bill.
942 _cBK
999 _c13255
_d13255