Regional differences in reasons for consultation and general practitioners' spectrum of services in northern Germany - results of a cross-sectional observational study.
Ingmar SchäferHeike HansenThomas RuppelDagmar LühmannHans-Otto WagnerAgata KazekMartin SchererPublished in: BMC family practice (2020)
The study was registered in ClinicalTrials.gov (NCT02558322).
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