Mark Citron has been named vice president of regulatoryaffairs and quality assurance at BioSurface Technology Inc. ofCambridge, Mass. He was previously director of regulatoryaffairs worldwide at ConvaTec, a Bristol-Myers Squibbcompany.

Hemosol Inc. of Toronto has appointed Dirk Alkema vicepresident of manufacturing at its Etobicoke, Ontario,manufacturing plant. He was director of vaccine manufacturingfor the Langford Division of Cyanamid Canada.

Bio-Imaging Technologies Inc. of West Trenton, N.J., has namedWilliam Montgomery manager of business development andpromoted John Ceccoli to assistant director of computer-assisted information services. Ceccoli was manager of imageprocessing at the company and Montgomery was industryaccounts manager, information systems, at DuPont MedicalProducts.

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