Routine second-trimester ultrasonography in the United States: A cost-benefit analysis

Anthony M. Vintzileos, Cande V. Ananth, John C. Smulian, Tryfon Beazoglou, Robert A. Knuppel

American Journal of Obstetrics and Gynecology · 2000 · 53 citations · 21 references

Concepts

References

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