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. 2018 Apr 7;8(4):e017273. doi: 10.1136/bmjopen-2017-017273

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Enrolment sites throughout Denmark. Every circle represents an enrolment site, either at a general practitioner’s office or at an outpatient clinic. The administrative headquarter of the DD2 is in Odense (red dot). DD2, Danish Centre for Strategic Research in Type 2 Diabetes.