000 00627cam a2200241 4500
001 9906194
008 090401t1997 xxu||||| |||| 00| 0 eng d
020 _a0902331981
035 _a(Sirsi) i9780902331983
060 _aWS 107.
100 _aGrudzinskas, J G
245 _aScreening for Down Syndrome in the first trimester
260 _bRoyal College Obstet & Gynaecologists,
_c1997
300 _a364p
591 _aE
650 _aDown syndrome
_95939
650 _aScreening
650 _aPrenatal care
700 _aWard, R H T
710 _aRcog
710 _aRoyal College Obstet & Gynaecologists
942 _n0
999 _c257
_d257