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Dr. David H. Ryan
Publications
David H. Ryan
Obstetrics and Gynecology
252-744-1406
905 Johns Hopkins Dr
Greenville, NC 27834
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Last Updated: 09/26/2026
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Out-of-Pocket Healthcare Expenditures Associated with Prescription Opioid Use in Older Adults with Non-cancer Chronic Pain.
Out-of-Pocket Healthcare Expenditures Associated with Prescription Opioid Use in Older Adults with Non-cancer Chronic Pain.
Journal:
Drugs & aging
Published:
August 28, 2025
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Reevaluation of discriminatory and threshold levels for serum β-hCG in early pregnancy.
Reevaluation of discriminatory and threshold levels for serum β-hCG in early pregnancy.
Journal:
Obstetrics and gynecology
Published:
December 25, 2012
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Showing 1-2 of 2
Last Updated: 09/26/2026