Figure 1.

Flow of randomized patients from WENBIT to WENBIT HbA1c. WENBIT HbA1c designates the present study population with available dietary and HbA1c data. FFQ, Food Frequency Questionnaire; WENBIT, Western Norway B-Vitamin Intervention Trial.

Strand et al. BMC Medicine 2013 11:216   doi:10.1186/1741-7015-11-216
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