Hi all, Sorry I have not answered some of your comments. I have been writing to Bob proposing a summary statement of where we agree and disagree and I hope we can finish this debate with statements of agreement- at least on stem cells and maybe a little more. Thanks to all of you who wrote and participated. I think this is a strength of the group and as long as we remain relatively civil and relate to PD in some way I (obviously) support debate like this one. I will try and comment on some of your remarks from the past week and if I don't answer please e-mail me privately. and then I think it is time to move on. Charlie Charles T. Meyer, M.D. Middleton, WI PD DX 12 years (at age 44) Age 56