Table 1.

Average error, standard deviation (S.D.), minimum and maximum values for Systems S and E.

(unit, mm)	Total error	Variation among the points (AveEachPc)			Variation among the patients (AveEachPt)
		S.D	Min	Max	S.D	Min	Max
System S	0.89	0.36	0.42	4.02	0.30	0.33	1.77
System E	0.69	0.22	0.24	1.77	0.18	0.30	1.02

For the definition of the AveEachPc and AveEachPt, please see Supplementary Table S1.