title: Key steps in planning a survey.
authors.affiliation: Division of Clinical Epidemiology, Geneva University Hospital. bruna.galobardes@hcuge.ch
authors.forename: Bruna
authors.initials: B
authors.lastname: Galobardes
mesh_terms: D003219:Confidentiality; D003627:Data Interpretation, Statistical; D004989:Ethics; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D011159:Population Surveillance; D011786:Quality Control; D018401:Sample Size; D012494:Sampling Studies