Table 1. Characteristics of papers included in review.

Paper	Authors and year of publication	PEDro score	Design
1	Hamlyn C et al. 201212)	8/10	Clinical trial
2	Iglisias MEL et al. 201213)	7/10	Clinical trial
3	Qiu F et al. 201214)	5/10	Clinical trial
4	Hatto et al. 201115)	7/10	Clinical trial
5	Wang CC, Yang WH. 201116)	3/10	Clinical trial
6	Sungkarat et al. 201117)	7/10	Clinical trial
7	Hatton AL et al. 200918)	8/10	Clinical trial
8	Hijmans JM et al.200819)	5/10	Clinical trial
9	Palluel E et al. 200820)	5/10	Clinical trial
10	Perry SD et al. 200821)	6/10	Clinical trial
11	Geffen JAV et al. 200722)	5/10	Clinical trial
12	Priplata AA et al. 200623)	5/10	Clinical trial