“…Although many studies have addressed ways to improve clinical outcomes with appropriate use of pharmacotherapy worldwide (Whelton et al, 2018), studies on medication sharing have been conducted by researchers from limited number of countries. The majority of the published studies on the topic were from countries in Europe, America, and Oceania (Daniel et al, 2003;Sorensen et al, 2003;Goldsworthy et al, 2008;Petersen et al, 2008;Goulding et al, 2011;Ward et al, 2011;Beyene et al, 2014;Dohn and Pilkington, 2014;Markotic et al, 2017;Markotic et al, 2018;Beyene et al, 2019a;Beyene et al, 2019b;Beyene et al, 2019c), very few studies were reported from African countries and Middle East (Yousif, 2002;Jassim, 2010;Sharif et al, 2010;Auta et al, 2011;Kheir et al, 2011;Ocan et al, 2015;Asmelashe Gelayee and Binega, 2017;Mostafa-Hedeab, 2018;Obol et al, 2018;Torres et al, 2019;Alhomoud, 2020), even fewer studies were conducted from countries by researchers in Asia including Korea (Ali et al, 2010;Baber et al, 2017;Atif et al, 2019). While a few studies mentioned presence of medication sharing as a part of medication misuse (Jeong, 2017;Park and Jang, 2018), no studies were found from a literature search using keywords of medication sharing from the Research Information Sharing Service (RISS), a Korean research data search engine.…”