. . . . . . . . . . . "a(CHEBI:histamine) -> r(HGNC:PDE4B)" . "Approximately 61,000 statements." . "Copyright (c) 2011-2012, Selventa. All rights reserved." . "BEL Framework Large Corpus Document" . . "1.4" . "RT-PCR showed increased expression of mRNA transcripts for PDE4B in histamine-treated cells." . . "Selventa" . . . . "2014-07-03T14:29:53.757+02:00"^^ . . .