Assertion: prostaglandin's variety | /r/HasProperty | suggested as signal
Facets:
value: variously
type: DEGREE
value: for parturition
type: PURPOSE
Source sentences:
text: In addition, a variety of peptide hormones (cytokines,163 epidermal growth factor,164 transforming growth factor alpha,165 relaxin166) have been shown to stimulate fetal membrane prostaglandin synthesis in vitro and have been suggested variously as signals for parturition.