http://www.ncbi.nlm.nih.gov:80/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=2497929&dopt=Abstract
Brain Res 1989 Apr 24;485(2):309-16
Sisken BF, Kanje M, Lundborg G, Herbst E, Kurtz W.
Center for Biomedical Engineering, University of Kentucky, Lexington 40506.