. . . . . . . . . . . "a(CHEBI:androgen) -> p(HGNC:EGFR)" . "Approximately 61,000 statements." . "Copyright (c) 2011-2012, Selventa. All rights reserved." . "BEL Framework Large Corpus Document" . . "1.4" . "In the absence of androgens, the cells have low levels of ErbB1 and relatively high levels of ErbB2. Addition of androgens to the medium reversed the ratio; ErbB1 levels rose and ErbB2 levels dropped in response to treatment with the synthetic hormone, R1881." . . "Selventa" . . . . "2014-07-03T14:30:12.352+02:00"^^ . . .