000 00270 a2200109 4500
005 20220420054018.0
022 _a0849 5831
245 _aJournal of society of obstetrician and gynaecology of Canada
260 _aCanada
_bSOGC
_c1997
490 _vVol. 19
942 _2lcc
_cCR
999 _c19524
_d19524