Table 1. Systematic review of the identification data.
Reference	Year	Local	Population	Dose (mg/day)
				P	P/E
Fatemi et al.	2006	Spanish	201	600	600/4
Ceyhan et al.	2008	Istanbul	60	600	600/100*
Kwon et al.	2013	Seoul	110	90	90/4
Ismail Madkour et al.	2016	Multicentric	220	90	90/4
*µg/day, twice a week