title: Handwritten versus scanned signature on the invitation letter: does it make any difference in participation in a population-based study?
authors.affiliation: Tobacco Control Unit, Cancer Control and Prevention Programme, Institut Català d'Oncologia, ICO, Av. Granvia de L'Hospitalet, 199-203, 08908, L'Hospitalet de Llobregat, Barcelona, Spain.
authors.forename: Marcela
authors.initials: M
authors.lastname: Fu
authors.forename: Jose M
authors.initials: JM
authors.lastname: Martínez-Sánchez
authors.forename: Xisca
authors.initials: X
authors.lastname: Sureda
authors.forename: Cristina
authors.initials: C
authors.lastname: Martínez
authors.forename: Montse
authors.initials: M
authors.lastname: Ballbè
authors.forename: Lucía
authors.initials: L
authors.lastname: Baranda
authors.forename: Anna
authors.initials: A
authors.lastname: Riccobene
authors.forename: Esteve
authors.initials: E
authors.lastname: Fernández
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003256:Community Participation / Q000706:statistics & numerical data*; D055812:Community-Based Participatory Research; D016001:Confidence Intervals; D015709:Correspondence as Topic; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007407:Interviews as Topic; D008297:Male; D008875:Middle Aged; D016017:Odds Ratio; D035844:Researcher-Subject Relations; D012907:Smoking; D013030:Spain; D014028:Tobacco Smoke Pollution; D055815:Young Adult
chemical_list: D014028:Tobacco Smoke Pollution
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