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Editorial

Introducing the “Level of Evidence” to Obstetrics & Gynecology

Spong, Catherine Y.; Scott, James R.

Obstetrics & Gynecology: January 2004 - Volume 103 - Issue 1 - p 1-2

doi: 10.1097/01.AOG.0000104484.04069.D4

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© 2004 The American College of Obstetricians and Gynecologists

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