PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In addition, many studies have shown that P-gp is expressed in several normal tissues (e.g., intestinal epithelial cells, blood???brain barrier [BBB], and placenta.) and that its primary function is to prevent the uptake of toxic compounds from the gut into the body, to expel them in the bile or urine, and to protect some very sensitive organs, such as the brain, from them (11).
http://www.w3.org/ns/prov#wasQuotedFrom
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