Obstetrics & Gynecology
Volume 12996
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98
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231
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388
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423
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438
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598
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630
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699
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789
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830
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842
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844
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859
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860
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864
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866
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867
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868
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879
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881
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884
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893
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894
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895
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898
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901
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903
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904
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905
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906
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908
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911
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912
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943
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954
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955
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956
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962
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