||Human Homo sapiens
||Wood RE, Wirth FP Jr, Morgan HE. Glucose permeability of lipid bilayer membranes. Biochim Biophys Acta. 1968 Sep 17 163(2):171-8. p.175 3rd paragraphPubMed ID5686274
||M. H. Jacobs, in E. S. G. Barron, Modern Trends in Physiology and Biochemistry, Academic Press, New York, 1952, p.149.
||"Bimolecular lipid membranes have been prepared from total phospholipid
extracts of human red cells. The electrical properties and water permeability of these
membranes were similar to values reported earlier for other bilayer membranes."
||"In the human red cell k[urea] has been reported to be 1.9X10^-4cm/sec [primary source]."