Assertion: umbilical cord's artery | /r/HasProperty | grade
Facets:
Source sentences:
text: The degree of UCU is graded based on its width: from the desquamation of the epithelium (grade 1) and detachment of the basal lamina (grade 2) to the thinning of Wharton’s jelly with widespread grade 2 changes (grade 3) and exposed umbilical artery or vein (grade 4), in addition to perforation .