000 00293nam a2200133Ia 4500
999 _c13689
_d13689
082 _a618.2
_bCAL
100 _aCallen,P.W
245 0 _aUltrasonography in Obstetrics & Gynecology
250 _a5
260 _bSaunders
_c2008
300 _eNO
_a1239,P.,
650 _aObstetrics
942 _cBKS