“… N number of samples, μ mean, σ standard deviation. References 1 = Wyman et al [], 2 = Fountain et al [], 3 = Tomlinson et al [], 4 = Tomlinson [], 5 = Hollings [], 6 = Tomlinson et al [], 7 = Whalen et al [], 8 = Lesher et al [], 9 = Polat et al [], 10 = Polat and Kerrich [], 11 = Sage et al [], and 12 = [ Shaw et al , ].…”