Scientists at Dundee University have this week reported the promising first-year results of a Pounds 3 million drug development programme which is expect to reduce radically the use of laboratory animals in drug research. Fourteen drug companies are involved in the five-year programme under the Government's LINK scheme, which is directed by Brian Burchell and Roland Wolf of Dundee's biomedical research centre. The project involves growing genetically engineered cells in vitro.