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10-year survival curves for ACS* development, according to the quartiles of pack-years of smoking of the n = 2172 patients (log-rank p-values between 4th, 3rd, and 2nd vs. 1st quartile <0.01, p-value between 4th vs. 3rd = 0.78). *ACS event: the development of a new acute myocardial infarction, angina pectoris, other identified forms of ischemia, heart failure of different types and chronic arrhythmias during the 10 years follow-up time
