List samples that are non-reference at a given site
INFO=<ID=Samples,Number=.,Type=String,Description="List of polymorphic samples">
The output is a list of the samples that are genotyped as having one or more variant alleles. This allows you to easily determine which samples are non-reference (heterozygous or homozygous-variant) and compare them to samples that are homozygous-reference.
GATK version 3.6-0-g89b7209 built at 2017/02/09 12:52:48.