STRetch summary statistics from 97 PCR-free whole genomes

Robust median and variance estimates for all STR loci (based on the hg19 TRF annotation) for which any evidence of expansion has been observed in 97 PCR-free whole genomes. This file is generated by using the STRetch estimateSTR.py script with the --emit flag (see https://github.com/Oshlack/STRetch).