Dear Ganesalingham--how interesting to have a connection on the list to research in Singapore through you--- you will find that many folks here have had pallidotomies or are interested in them. Be aware, too, of the list archives with previous posts on many subjects. To access them send a request to John Cottingham <[log in to unmask]> and in the subject line put "archive search"---there's lots there about "Pals". Camilla Flintermann, CG for Peter, 78/7, Oxford,Ohio [log in to unmask] * * * * * * * * * * * * * * "Ask me about the CARE list for PD caregivers!" * * * * * * * * * * * * * *