Associations between polypharmacy and potentially inappropriate medications with risk of falls among the elderly in Saudi Arabia oleh Khalid S. AlHarkan, Safaa Alsousi, Mujtaba AlMishqab, Majd Alawami, Jaffar Almearaj, Hassan Alhashim, Hassan Alamrad, Layla M. Alghamdi, Abdulelah Almansour, Reem S. AlOmar