Zynaxis Inc. of Malvern, Pa., named Martyn Greenacre presidentand chief executive officer and a member of the company'sboard of directors. Greenacre, formerly chairman, Europe, ofSmithKline Beecham Pharmaceuticals in London, replacesThomas Cekoric.

Bill MacDonald was elected president of ICN Biomedicals ofCosta Mesa, Calif. He was executive vice president, tax andcorporate development for ICN Pharmaceuticals, ICNBiomedical's parent company.

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