QSAM Biosciences Clarifies Recent Promotional and Trading Activities at the Request of OTC Markets Austin, Texas;, Feb. 11, 2021 (GLOBE NEWSWIRE) -- QSAM Biosciences Inc. (OTCQB: QSAM) (“QSAM” or the “Company”), today announced that it became aware on February 9, 2021 of certain promotional...