http://www.ncbi.nlm.nih.gov:80/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11154103&dopt=Abstract
Brain Topogr 2000 Winter;13(2):135-44
Anninos PA, Adamopoulos AV, Kotini A, Tsagas N.
Dept. of Medicine, Demokrition University of Thrace, Alexandroupolis, Greece.