There are multiple definitions:

1. osmotic-release oral system(English)

   • ADHD, LDX, OROS-MPH
   • Therapeutic approaches, Pharmacology / pharmaceutics
   • https://doi.org…0263-017-0468-2

2. Outcome Reporting in Obstetric Studies(English)

   • COS-STAD, COS-STAR, HCP, HSU, LGA, SGA, AGA, BW, COMET, COS
   • Pregnancy, Obstetrics, Quality and outcomes, Cardiology
   • https://doi.org…OMES.124.011754