Quantity, topics, methods and findings of randomised controlled trials published by German university departments of general practice - systematic review.
Relative impact of COPD and comorbidities on generic health-related quality of life: a pooled analysis of the COSYCONET patient cohort and control subjects from the KORA and SHIP studies.
Direct and indirect costs of COPD and its comorbidities: Results from the German COSYCONET study.
Effects of a Web-Based Intervention for Stress Reduction in Primary Care: A Cluster Randomized Controlled Trial.
J Med Internet Res
Questionable assumptions hampered interpretation of a network meta-analysis of primary care depression treatments.
J Clin Epidemiol
Association of the average rate of change in HbA1c with severe adverse events: a longitudinal evaluation of audit data from the Bavarian Disease Management Program for patients with type 2 diabetes mellitus.