(Q53924454)
Statements
Ectopic pregnancy in the United States 1970 through 1978. (English)
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G L Rubin
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H B Peterson
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S F Dorfman
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P M Layde
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J M Maze
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H W Ory
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W Cates
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1 April 1983
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249
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13
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1725-1729
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Identifiers
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