$BSGM Issues Letter to Shareholders ~ February 2019 https://s3.amazonaws.com/content.stockpr.com/biosigtech/files/pages/biosigtech/db/349/content/BSGM+-+SHL+-+February2019.pdf https://res.cloudinary.com/latvwsyes/image/upload/v1550772107/sh.letter.600_dcq1l3.png