Our study showed an added effect of alcohol consumption on smoking pack-years and cigarettes per day in current smokers
The government has not moved to restrict smoking in cars, but has run mass media campaigns that promote smoke-free cars and homes

LIST OF TABLES AND FIGURES TABLE 1 PROJECTED REAL GDP GROWTH (ANNUAL PERCENTAGE CHANGE) OF KEY COUNTRIES TABLE 2 GLOBAL CELLULOSE ACETATE TOW FOR CIGARETTE FILTER MARKET, BY APPLICATION (USD BILLION) TABLE 3 GLOBAL CELLULOSE ACETATE TOW FOR CIGARETTE FILTER MARKET, BY PRODUCT TYPE (USD BILLION) TABLE 4 GLOBAL CELLULOSE ACETATE TOW FOR CIGARETTE FILTER MARKET, BY DISTRIBUTION CHANNEL (USD BILLION) TABLE 5 GLOBAL CELLULOSE ACETATE TOW FOR CIGARETTE FILTER MARKET, BY END USE (USD BILLION) TABLE 6 GLOBAL CELLULOSE ACETATE TOW FOR CIGARETTE FILTER MARKET, BY GEOGRAPHY (USD BILLION) TABLE 7 NORTH AMERICA CELLULOSE ACETATE TOW FOR CIGARETTE FILTER MARKET, BY COUNTRY (USD BILLION) TABLE 8 NORTH AMERICA CELLULOSE ACETATE TOW FOR CIGARETTE FILTER MARKET, BY APPLICATION (USD BILLION) TABLE 9 NORTH AMERICA CELLULOSE ACETATE TOW FOR CIGARETTE FILTER MARKET, BY PRODUCT TYPE (USD BILLION) TABLE 10 NORTH AMERICA CELLULOSE ACETATE TOW FOR CIGARETTE FILTER MARKET, BY DISTRIBUTION CHANNEL (USD BILLION) TABLE 11 NORTH AMERICA CELLULOSE ACETATE TOW FOR CIGARETTE FILTER MARKET, BY END USE (USD BILLION) TABLE 12 U.S

Indeed, one study reported that differences in pipe material affected the levels of carbon monoxide (CO) exposure, correlating the non-porous plastic hose with higher yields of CO compared to the more porous leather hose [6]
Let's start simple