Assertion: spondylolisthesis | /r/HasProperty | gradual
Facets:
value: in onset
type: TEMPORAL
value: very
type: DEGREE
Source sentences:
text: For example, when the spondylolisthesis is very gradual in onset, or in cases of congenital spondylolisthesis compensatory changes in the spine and musculature occur so that realignment may increase the possibility of further injury.