Case-control study of the parkin gene in early-onset Parkinson disease

Lorraine N. Clark, Shehla Afridi, Eric Karlins, Yuanjia Wang, Helen Mejia-Santana, Juliette Harris, Elan D. Louis, Lucien J. Cote, Howard Andrews, Stanley Fahn, Cheryl Waters, Blair Ford, Steven Frucht, Ruth Ottman, Karen Marder