Crawford, C, Kennedy-Lydon, T M, Callaghan, H, Sprott, C, Simmons, R L, Sawbridge, L, Syme, H M, Unwin, R J, Wildman, S S P, Peppiatt-Wildman, C M, "Extracellular nucleotides affect pericyte-mediated regulation of rat in situ vasa recta diameter", Acta Physiologica,