Table 2.

Studies used in systematic review

Study	Authors	References	Type of study	Pederson index analysis
1	Yuasa et al.	[10]	RCT	Yes
2	Freitis et al.	[11]	RCT	Yes
3	Gbotolorum et al.	[12]	RCT	Yes
4	Akadiri et al.	[13]	RCT	Yes