Evaluation of hypertension knowledge and its association with medication adherence among hypertensive patients attending primary health centers: a cross-sectional study from eastern Saudi Arabia - Al-Hazmi, Ahmad Homoud; Alanazi, Abdullah Dhoimi Mureed; Thirunavukkarasu, Ashokkumar; Alriwely, Nasser Saleh; Alrais, Mmdoh Mohammad F.; Alruwaili, Alreem Barghash S.; Alnosairi, Mona Saleh; Alsirhani, Amnah Ibrahim (Frontiers in Public Health, 2025)