Aeterna Zentaris Increases Previously Announced Bought Deal Offering of Common Shares to $29.7 Million CHARLESTON, S.C., Feb. 16, 2021 (GLOBE NEWSWIRE) -- Aeterna Zentaris Inc. (NASDAQ: AEZS) (TSX: AEZS) (“Aeterna” or the “Company”), a specialty biopharmaceutical company commercializing and...