Pooled Analysis of Tobacco Use and Risk of Parkinson DiseaseBeate Ritz, Jay M. Gorell, Alberto Ascherio et al.|Archives of Neurology|2007Cited by 365
Clinical course of spontaneous subarachnoid hemorrhageW. T. Longstreth, Gerald van Belle, Lorene M. Nelson et al.|Neurology|1993Cited by 309
Cigarette smoking, alcohol use, and subarachnoid hemorrhage.W.T. Longstreth, Gerald van Belle, Lorene M. Nelson et al.|Stroke|1992Cited by 298
Recommendations for observational studies of comorbidity in multiple sclerosisRuth Ann Marrie, Jerry S. Wolinsky, Paul O’Connor et al.|Neurology|2016Cited by 82
The challenge of comorbidity in clinical trials for multiple sclerosisRuth Ann Marrie, Jerry S. Wolinsky, Aaron Miller et al.|Neurology|2016Cited by 61