$VAR1 = {
          '42-MG-BA' => [
                          {
                            'chromosome' => '19',
                            'position' => '35770059',
                            'genotype' => 'TC'
                          },
                          {
                            'chromosome' => '2',
                            'position' => '68019584',
                            'genotype' => 'G'
                          },
                          {
                            'chromosome' => '16',
                            'position' => '9561557',
                            'genotype' => 'G'
                          },