An official website of the United States government Here's how you know

U.S. Department of Health and Human Services | National Institutes of Health

Official websites use .gov
A .gov website belongs to an official government
organization in the United States.

Secure .gov websites use HTTPS
A lock (🔒) or https:// means you've safely connected to the .gov website.
Share sensitive information only on official, secure websites.

Baseline Use of Aspirin or Statins With Oral Estrogen and Progestogens to Prevent Incident Arterial or Venous Thrombotic Events: A Secondary Analysis of the Women’s Health Initiative Trial

CTSA https://pubmed.ncbi.nlm.nih.gov/41117635/ 2026-02-01T00:00:00Z Pediatric Nephrology