https://www.selleckchem.com/pr....oducts/4-chloro-dl-p
To fully characterize the risk for dementia associated with cigarette smoking, studies must consider competing risks that hinder the observation of dementia or modify the chance that dementia occurs (i.e., death). Extant research examining the competing risks fails to account for the occurrence of death following dementia, limiting our understanding of the relation between smoking and dementia. Examine the impact of smoking status, lifetime smoking exposure, and duration of abstinence on incident dementia, death follow