![Dried blood spot testing for estimation of renal function and analysis of metformin and sitagliptin concentrations in diabetic patients: a cross-sectional study]()
Dried blood spot testing for estimation of renal function and analysis of metformin and sitagliptin concentrations in diabetic patients: a cross-sectional studyScherf-Clavel, Maike; Albert, Edwin; Zieher, Stephan; Valotis, Anagnostis; Hickethier, Thomas; Högger, Petra · European Journal of Clinical Pharmacology · 2019