Helius Medical Technologies Announces Positive Results from its Registrational Clinical Trial for Traumatic Brain Injury (TBI) NEWTOWN, Pa., Nov. 09, 2017 (GLOBE NEWSWIRE) -- Helius Medical Technologies, Inc. (TSX:HSM) (OTCQB:HSDT) ("Helius" or the "Company"), a medical technology company focused on neurological wellness,...