Supplementary material for: Presoaking dried blood spot with water improves efficiency for small-molecule analysis

This research was supported by Projects for Research and Development of Police Science and Technology under the Center for Research and Development of Police Science and Technology and Korean National Police Agency funded by the Ministry of Science, ICT and Future Planning, Korea [Grant No. PA-I000001]. The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed. No writing assistance was utilized in the production of this manuscript.