And Mr. Steven Gill in the UK has experimented for the past several years and has come up with a new delivery method for GDNF. "Now Mr Gill is undertaking a programme of research to establish a far less invasive method of convection-enhanced delivery (CED) which potentially could open up GDNF and other exciting molecule and gene based therapies to everyone with Parkinson’s and could also have implications for other neurological conditions."
From Cure Parkinson's Trust

Jean