Smoking--a study that leaves many questions unanswered.
Sybrecht
Gerhard W
GW
D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D016739:Behavior, Addictive / Q000453:epidemiology* / Q000517:prevention & control*; D015897:Comorbidity; D005858:Germany / Q000453:epidemiology; D006801:Humans; D008019:Life Style; D008875:Middle Aged; D009042:Motivation; D015995:Prevalence; D012907:Smoking / Q000453:epidemiology*; D016540:Smoking Cessation / Q000706:statistics & numerical data*; D000074606:Smoking Prevention