Factors associated with creatine kinase variability among statin users in routine outpatient care: a retrospective cross-sectional study - Aymen Alqurain; Ahmed K. Alsultan; Mariam K. Alamoudi; Maram Almohaywi; Afnan Shakoori; Hassan Al Gharash; Nida Alsaffar; Amani S. Alrossies (Frontiers in Cardiovascular Medicine, 2026)