Table 7. Composite (intra- and inter-run) precision analysis by sample type (n=replicate pairs).

Sample type	Concordant variants	Discrepant variants	Discrepant artifacts	Cause(s) of discrepancy
Unfixed (n=14)	41	1*	2	*Single nucleotide variants (SNV) threshold [1]; intronic homopolymer [1]; indel mapping [1]
Fixed (n=16)	34	0	17	Intronic homopolymer [17]