TY - JOUR A1 - Scholte, W.F. A1 - Verduin, F. A1 - van Lammeren, A. A1 - Rutayisire, T. A1 - Kamperman, A.M. T1 - Psychometric properties and longitudinal validation of the self-reporting questionnaire (SRQ-20) in a Rwandan community setting: A validation study Y1 - 2011 DO - 10.1186/1471-2288-11-116 JF - BMC Medical Research Methodology VL - 11 ER -