. . . . . . . . . . . . "a(CHEBI:progesterone) -> r(RGD:Esr1)" . "Approximately 61,000 statements." . "Copyright (c) 2011-2012, Selventa. All rights reserved." . "BEL Framework Large Corpus Document" . . "20131211" . "attachment of the blastocyst, an event that is dependent on estradiol in the progesterone-primed uterus of the rat, occurs on day 5 of pregnancy and the levels of the ER protein and the ERalpha mRNA on day 5 of pregnancy was the highest" . . "Selventa" . . . . "2014-07-03T14:32:25.247+02:00"^^ . . .