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3. Thermo Fisher Scientific, DNA Collection Solutions for Human Identification, United States, 2013.
4. N. Macherey, NucleoSave Blood Storage Cards, Convenient Storage of Blood Samples at Room Temperature NucleoSave, Germany, 2015.
5. Repeated extraction of DNA from FTA cards;Stangegaard;Forensic Sci. Int. Genet.,2011