Assertion: ureter | /r/AtLocation | immature configuration
Facets:
value: at e18 in rara−/− rarb2−/− mice
type: OTHER
Source sentences:
text: At E18 in Rara−/− Rarb2−/− mice, ureters were still in an immature configuration, which suggested that some aspect of ureter maturation was abnormal, although little is known about how maturation normally occurs.