1. Determinants of regional differences in sick leave duration for homogenous groups in the Netherlands: their implications for social security policy-making Creator: Beemsterboer, Willibrord Type: model:article and TEXT Language: English Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
2. The influence of sick leave frequency determinants on homogeneous groups in two socio-economically comparable, but socio-culturally different regions in The Netherlands Creator: Beemsterboer, Willibrord Type: model:article and TEXT Language: English Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public