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J Biol Chem 273:1069010695 Roskoski R Jr (2012) MEK1/2 dual-specificity protein kinases: structure and regulation

Proponents cite research that shows 95 percent of smokers began the habit before they turned 21

E-cigarettes were the most commonly used tobacco product among high school (11.7%) and middle school (3.3%) students in 2017
[Google Scholar] Dobkin de Rios M (1996)
