. . . . . . . . . . . . . "a(CHEBI:histamine) -> cat(p(RGD:Hrh2))" . "Approximately 61,000 statements." . "Copyright (c) 2011-2012, Selventa. All rights reserved." . "BEL Framework Large Corpus Document" . . "20131211" . "vascular hyperpolarization through opening of K+ channels (SKCa) mediate the dilator responses to histamine H2 receptor and the putative histamine H3 receptor" . . "Selventa" . . . . "2014-07-03T14:34:11.354+02:00"^^ . . .