[Tobacco habit in rural areas].
Calderón
E
E
de Villar
E
E
Cantalejo
F J
FJ
Acostar
J
J
D006801:Humans; D012424:Rural Population; D012907:Smoking / Q000453:epidemiology*; D013030:Spain / Q000453:epidemiology
Tabaquismo en un medio rural.