 RALEIGH, N.C., Sept. 07, 2021 GLOBE NEWSWIRE -- BioDelivery Sciences International, Inc. NASDAQ: BDSI, a growing specialty pharmaceutical company dedicated to patients living with chronic conditions, will showcase three scientific posters regarding BELBUCA buprenorphine buccal film, CIII at the PAINWeek 2021 Conference taking place September 7 11, 2021 at The Cosmopolitan of Las Vegas. 