Year, Count, Co-author(s) 2009,13,"Nichols, W. C.; Halter, C.; Latourelle, J. C.; Pankratz, N.; Pugh, E. W.; Nance, Martha A., MD; Doheny, K. F.; Gusella, J. F.; GenePD Investigator,; PSG-PROGENI and GenePD Investigators and Molecular Genetic Laboratories,; Myers, R. H.; DeStefano, A. L.; Wilk, J. B."