M. Vila and S. Przedborski, Genetic clues to the pathogenesis of Parkinson's disease, Nature Medicine, vol.50, issue.7, pp.58-62, 2004.
DOI : 10.1038/nm1068

K. Semchuk, E. Love, and R. Lee, Parkinson's disease: A test of the multifactorial etiologic hypothesis, Neurology, vol.43, issue.6, pp.1173-1180, 1993.
DOI : 10.1212/WNL.43.6.1173

A. Morano, F. Jiménez-jiménez, J. Molina, and M. Antolín, Risk-factors for Parkinson's disease: case-control study in the province of C??ceres, Spain, Acta Neurologica Scandinavica, vol.12, issue.Suppl. 1, pp.164-170, 1994.
DOI : 10.1111/j.1600-0404.1994.tb01655.x

H. Payami, K. Larsen, S. Bernard, and J. Nutt, Increased risk of Parkinson's disease in parents and siblings of patients, Annals of Neurology, vol.25, issue.4, pp.659-661, 1994.
DOI : 10.1002/ana.410360417

G. De-michele, A. Filla, and G. Volpe, Environmental and genetic risk factors in Parkinson's disease: A case-control study in southern italy, Movement Disorders, vol.11, issue.1, pp.17-23, 1996.
DOI : 10.1002/mds.870110105

K. Marder, M. Tang, and H. Mejia, Risk of Parkinson's disease among first-degree relatives: A community-based study, Neurology, vol.47, issue.1, pp.155-160, 1996.
DOI : 10.1212/WNL.47.1.155

S. Mccann, D. Lecouteur, and A. Green, The Epidemiology of Parkinson???s Disease in an Australian Population, Neuroepidemiology, vol.17, issue.6, pp.310-317, 1998.
DOI : 10.1159/000026185

A. Elbaz, F. Grigoletto, and M. Baldereschi, Familial aggregation of Parkinson's disease: A population-based case-control study in Europe, Neurology, vol.52, issue.9, pp.1876-1882, 1999.
DOI : 10.1212/WNL.52.9.1876

B. Rybicki, C. Johnson, and E. Peterson, A Family History of Parkinson???s Disease and Its Effect on Other PD Risk Factors, Neuroepidemiology, vol.18, issue.5, pp.270-278, 1999.
DOI : 10.1159/000026222

C. Taylor, M. Saint-hilaire, and L. Cupples, Environmental, medical, and family history risk factors for Parkinson's disease: A New England-based case control study, American Journal of Medical Genetics, vol.12, issue.6, pp.742-749, 1999.
DOI : 10.1002/(SICI)1096-8628(19991215)88:6<742::AID-AJMG29>3.0.CO;2-#

J. Autere, J. Moilanen, V. Myllylä, and K. Majamaa, Familial aggregation of Parkinson's disease in a Finnish population, Journal of Neurology, Neurosurgery & Psychiatry, vol.69, issue.1, pp.107-109, 2000.
DOI : 10.1136/jnnp.69.1.107

S. Sveinbjörnsdóttir, A. Hicks, and T. Jónsson, Familial Aggregation of Parkinson's Disease in Iceland, New England Journal of Medicine, vol.343, issue.24, pp.1765-1770, 2000.
DOI : 10.1056/NEJM200012143432404

H. Payami, S. Zareparsi, D. James, and J. Nutt, Familial aggregation of Parkinson disease. A comparative study of early-onset and late-onset disease, Arch Neurol, vol.59, pp.848-850, 2002.

K. Marder, G. Levy, and E. Louis, Familial aggregation of early- and late-onset Parkinson's disease, Annals of Neurology, vol.35, issue.4, pp.507-513, 2003.
DOI : 10.1002/ana.10711

A. Elbaz, S. Mcdonnell, and D. Maraganore, Validity of family history data on PD: Evidence for a family information bias, Neurology, vol.61, issue.1, pp.11-17, 2003.
DOI : 10.1212/01.WNL.0000068007.58423.C2

C. Tanner, R. Ottman, and S. Goldman, Parkinson Disease in Twins<SUBTITLE>An Etiologic Study</SUBTITLE>, JAMA, vol.281, issue.4, pp.341-346, 1999.
DOI : 10.1001/jama.281.4.341

K. Wirdefeldt, M. Gatz, M. Schalling, and N. Pedersen, No evidence for heritability of Parkinson disease in Swedish twins, Neurology, vol.63, issue.2, pp.305-311, 2004.
DOI : 10.1212/01.WNL.0000129841.30587.9D

P. Piccini, D. Burn, and R. Ceravolo, The role of inheritance in sporadic Parkinson's disease: Evidence from a longitudinal study of dopaminergic function in twins, Annals of Neurology, vol.3, issue.5, pp.577-582, 1999.
DOI : 10.1002/1531-8249(199905)45:5<577::AID-ANA5>3.0.CO;2-O

D. Maraganore, A. Harding, and C. Marsden, A clinical and genetic study of familial Parkinson's disease, Movement Disorders, vol.41, issue.3, pp.205-211, 1991.
DOI : 10.1002/mds.870060303

A. Lazzarini, R. Myers, T. Zimmerman, and . Jr, A clinical genetic study of Parkinson's disease: Evidence for dominant transmission, Neurology, vol.44, issue.3, Part 1, pp.499-506, 1994.
DOI : 10.1212/WNL.44.3_Part_1.499

S. Zareparsi, T. Taylor, E. Harris, and H. Payami, Segregation analysis of Parkinson disease, American Journal of Medical Genetics, vol.351, issue.4, pp.410-417, 1998.
DOI : 10.1002/(SICI)1096-8628(19981204)80:4<410::AID-AJMG21>3.0.CO;2-2

N. Maher, L. Currie, and A. Lazzarini, Segregation analysis of Parkinson disease revealing evidence for a major causative gene, American Journal of Medical Genetics, vol.17, issue.3, pp.191-197, 2002.
DOI : 10.1002/ajmg.10335

A. Korchounov, H. Schipper, and I. Preobrazhenskaya, Differences in age at onset and familial aggregation between clinical types of idiopathic Parkinson's disease, Movement Disorders, vol.40, issue.9, pp.1059-1064, 2004.
DOI : 10.1002/mds.20061

W. Rocca, S. Mcdonnell, and K. Strain, Familial aggregation of Parkinson's disease: The Mayo Clinic family study, Annals of Neurology, vol.13, issue.4, pp.495-502, 2004.
DOI : 10.1002/ana.20228

W. Rocca, B. Peterson, and S. Mcdonnell, The Mayo Clinic Family Study of Parkinson???s Disease: Study Design, Instruments, and Sample Characteristics, Neuroepidemiology, vol.24, issue.3, pp.151-167, 2005.
DOI : 10.1159/000083612

J. Bower, D. Maraganore, S. Mcdonnell, and W. Rocca, Incidence and distribution of parkinsonism in Olmsted County, Minnesota, 1976-1990, Neurology, vol.52, issue.6, pp.1214-1220, 1999.
DOI : 10.1212/WNL.52.6.1214

J. Bower, D. Maraganore, S. Mcdonnell, and W. Rocca, Influence of strict, intermediate, and broad diagnostic criteria on the age- and sex-specific incidence of Parkinson's disease, Movement Disorders, vol.47, issue.5, pp.819-825, 2000.
DOI : 10.1002/1531-8257(200009)15:5<819::AID-MDS1009>3.0.CO;2-P

W. Rocca, J. Bower, and S. Mcdonnell, Time trends in the incidence of parkinsonism in Olmsted County, Minnesota, Neurology, vol.57, issue.3, pp.462-467, 2001.
DOI : 10.1212/WNL.57.3.462

W. Rocca, D. Maraganore, S. Mcdonnell, and D. Schaid, Validation of a Telephone Questionnaire for Parkinson???s Disease, Journal of Clinical Epidemiology, vol.51, issue.6, pp.517-523, 1998.
DOI : 10.1016/S0895-4356(98)00017-1

L. Kurland and C. Molgaard, The Patient Record in Epidemiology, Scientific American, vol.245, issue.4, pp.54-63, 1981.
DOI : 10.1038/scientificamerican1081-54

L. Melton and . Iii, History of the Rochester Epidemiology Project, Mayo Clinic Proceedings, vol.71, issue.3, pp.266-274, 1996.
DOI : 10.4065/71.3.266

G. Bonney, Regressive Logistic Models for Familial Disease and Other Binary Traits, Biometrics, vol.42, issue.3, pp.611-625, 1986.
DOI : 10.2307/2531211

A. Brice, How much does dardarin contribute to Parkinson's disease?, The Lancet, vol.365, issue.9457, pp.363-364, 2005.
DOI : 10.1016/S0140-6736(05)70210-5

J. Hardy, M. Cookson, and A. Singleton, Genes and parkinsonism, The Lancet Neurology, vol.2, issue.4, pp.221-228, 2003.
DOI : 10.1016/S1474-4422(03)00350-8

D. Sackett, Bias in analytic research, Journal of Chronic Diseases, vol.32, issue.1-2, pp.51-63, 1979.
DOI : 10.1016/0021-9681(79)90012-2