1. Degenerative Spondylolisthesis: When to Fuse?. Issue 11 (November 2017) Authors: Varthi, Arya G.; Nelson, Stephen; Phillips, Frank M. Journal: Contemporary spine surgery Issue: Volume 18:Issue 11(2017:Nov.) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗