1 Biological tissue, namely, blood, stem cells, umbilical cords and placentas for scientific and medical research use; Biological tissue, namely, a set of matched frozen and fixed human biological specimens derived from the division of one original specimen for use in scientific and medical research; Biological tissue, namely, blood plasma, urine, stool, saliva, sputum, nasal, vaginal, rectal, cervical, hair, tears, tissue for use in scientific and medical research; Cells for scientific, laboratory or medical research