Kuekenshoner, Sarah, 		Böhme, K, 		Bosse, F, 		Casser, H, 		Kohmann, T, 		Lindena, G, 		Nagel, B, 		Petzke, F, 		Pfingsten, M, AND 		Hüppe, M.
" Assessment of initial differences between inpatient and outpatient patients receiving pain therapy in Germany: the KEDOQ-Pain quality assurance system" <em>Medical Research Archives</em> [Online], Volume 6 Number 7 (17 July 2018)