Open Access Research article

Validation of the PHQ-9 as a screening instrument for depression in diabetes patients in specialized outpatient clinics

Kirsten M van Steenbergen-Weijenburg*, Lars de Vroege, Robert R Ploeger, Jan W Brals, Martijn G Vloedbeld, Thiemo F Veneman, Leona Hakkaart-van Roijen, Frans FH Rutten, Aartjan TF Beekman and Christina M van der Feltz-Cornelis

BMC Health Services Research 2010, 10:235  doi:10.1186/1472-6963-10-235

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