title: [A study of smoking habits among pregnant women. Most pregnant smokers are in the lower social groups].
authors.affiliation: Folkhälsoinstitutet, Stockholm.
authors.forename: L E
authors.initials: LE
authors.lastname: Holm
authors.forename: P O
authors.initials: PO
authors.lastname: Olausson
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008875:Middle Aged; D011247:Pregnancy; D011248:Pregnancy Complications / Q000139:chemically induced* / Q000517:prevention & control; D012907:Smoking / Q000009:adverse effects / Q000453:epidemiology*; D012923:Social Class; D013548:Sweden / Q000453:epidemiology
vernacular_title: Studie av gravidas rökvanor. Flest gravida rökare i lägre socialgrupper.