A 2007 study from researchers at Cork University Hospital found that the number of heart attacks dropped in the year following the implementation of a smokefre air law. Dr. Edmond Cronin, lead researcher, stated, "We found the number of heart attacks decreased by 14 per cent in the year following the introduction of the ban." The study found a 23 percent drop among smokers, compared with a 10 percent decrease among nonsmokers.