Assertion: corpus luteum | /r/HasProperty | degraded to a corpus albicans
Facets:
value: alternatively
type: DEGREE
value: by pgf2alpha
type: OTHER
Source sentences:
text: Alternatively if no implantation of a blastocyst occurs, the corpus luteum is degraded to a corpus albicans (scar tissue) by PGF2alpha released by uterine endometrial cells.