- Of the unanswered questions in this studies, for example what type of patients have been affected by severity of Stroke and by a number of Stroke? Because the number of patients with diagnosed Stroke as well as diagnosed Dementia in this 15,000 plus patient population is actually not as large. It's hard to differentiate the effect on certain types of patients by for example, racial or ethnic background. It's also unclear whether the timeline of Dementia onset has varied for different patient subtypes in this study. Finally, one of the other aspects of has not been specifically addressed in this particular study is the type of Stroke. It only looked at the Ischemic Stroke which is a Stroke that's caused by a blood clot and lack of blood flow in the brain as a result. But there are multiple Strokes subtypes such as Intracranial Hemorrhage which is a Hemorrhagic Stroke, or Bleeding Stroke and a type of a Stroke that's called Subarachnoid Hemorrhage or any reasonable Subarachnoid Hemorrhage which also is associated with cognitive decline and Dementia, as we know it. So future studies would be able to address the association between the type of Stroke and incidents or occurrence of Dementia. Future studies would be able to address the association between different Stroke subtypes within different diverse populations in the United States, such as African-Americans or patients of Hispanic background. And future studies would also be able to look at the mechanisms that are underlying their occurrence of Dementia as a result of Stroke because these mechanisms currently are not known.