EXHIBIT A AGREEMENT JOINT FILING OF SCHEDULE 13G The undersigned hereby agree to jointly prepare and file with regulatory authorities a Schedule 13G and any future amendments thereto reporting each of the undersigned's ownership of securities of...Davis J Morton • May 23rd, 2001 • Services-commercial physical & biological research
The undersigned hereby agree to jointly prepare and file with regulatory authorities a Schedule 13G and any future amendments thereto reporting each of the undersigned's ownership of securities of Sentigen Holding Corp. and hereby affirm that such Schedule 13G is being filed on behalf of each of the undersigned.
