. . . . . . . . . . . "a(SCHEM:Tretinoin) -> r(RGD:Spp1)" . "Approximately 61,000 statements." . "Copyright (c) 2011-2012, Selventa. All rights reserved." . "BEL Framework Large Corpus Document" . . "20131211" . "Alkaline phosphatase mRNA was absent in the preosteoblast cell lines but was induced by treatment with 10(-6) M RA, which also increased the steady-state levels of mRNA for osteopontin and BMP1." . . "Selventa" . . . . "2014-07-03T14:32:59.295+02:00"^^ . . .