ECONOMIC BURDEN OF OSTEOARTHRITIS MANAGEMENT IN ISLAMABAD AND RAWALPINDI, PAKISTAN: A COMPARATIVE PHARMACOECONOMIC ANALYSIS OF PHARMACOTHERAPY VERSUS TOTAL KNEE ARTHROPLASTY ACROSS PUBLIC AND PRIVATE HEALTHCARE SECTORS. Frontier in Medical and Health Research, [S. l.], v. 4, n. 3, p. 4366–4378, 2026. Disponível em: https://fmhr.net/index.php/fmhr/article/view/3798.. Acesso em: 8 nov. 2026.