Reference	Right Count	Left Count	Right %	Left %	Notes
Jones1982	56	53	0.510	0.490	Right/left counts derived from reported totals and proportions
Rosenberg2000	2	0	1.000	0.000	
Yamaguchi1994	14	17	0.452	0.548	
Jaroensutasinee2004	60	56	0.517	0.483