3Centers for Disease Control and Prevention.Alcohol attributable deaths and years of potential life lost——United States,2001. Morbidity and Mortality Weekly Report . 2004
4Akao S,Kawakami N,Ohtsu T etal.Occupational Class and Physical Activity among Japanese Employees. Social Science and Medicine . 2003
5Fagerstrom K.The epidemiology of smoking: health consequences and benefits of cessation. Drugs . 2002
