Vitamin A Reduction in Eider Ducklings (Somateria mollissima) Exposed to Polychlorinated Biphenyls (CB-77 and Clophen A50) Publication Attachment: 93-232.pdf Authors: Murk, AJ, Rozemeijer, MJC, Boon, JP, Koeman, JHJ, Brouwer, A Year: 1993