Comparison of laboratory results and pain perception in self-sampled capillary blood versus venous blood sampling: a systematic review and meta-analysis. - Schröder D; Hafke A; Hummers E; Schuchardt C; Müller CA; Hoffmeister L; Happle C; Dopfer-Jablonka A; Behrens GMN; Schanz J; Müller F (Clinical biochemistry, 2025)