has_specified_input is_specified_output_of has role specimen role blood specimen processed specimen blood serum specimen PERSON: Philippe Rocca-Serra A material entity which derives from blood and corresponds to blood plasma without fibrinogen or the other clotting factors. PERSON: Maura Gasparetto PERSON: Melanie Courtot PMID: 18229666.Adv Med Sci. 2007;52 Suppl 1:204-6.Antioxidant activity of blood serum and saliva in patients with periodontal disease treated due to epilepsy. WEB: http://en.wikipedia.org/wiki/Blood_plasma blood serum specimen filtration centrifugation dialysis metadata complete