2026. S21-5: Training General Practitioners to Integrate Brief Physical Activity Advice Into Primary Care for Patients With Coronary Heart Disease: Findings From The OptiCor Pragmatic Pilot cRCT. Baltic Journal of Sport and Health Sciences. 5, Supplement (Jan. 2026), 316. DOI:https://doi.org/10.33607/bjshs.v5iSupplement.2085.