title: Different methods of single practice research.
authors.forename: J G
authors.initials: JG
authors.lastname: Hansen
authors.forename: H
authors.initials: H
authors.lastname: Schmidt
mesh_terms: D002986:Clinical Trials as Topic; D003430:Cross-Sectional Studies; D005194:Family Practice / Q000458:organization & administration*; D006801:Humans; D015995:Prevalence; D011331:Private Practice / Q000458:organization & administration*; D015203:Reproducibility of Results; D012107:Research Design