Activity	Time (month)
	1	2	3	4	5	6	7	8	9	10	11	12
Providing materials	*	*	*	*
Entrance of patients					*	*	*
Implementation								*	*
Analysis of data										*
Reporting final paper											*	*
Total	*	*	*	*	*	*	*	*	*	*	*	*