Network File System (NFS) version 4 Protocol Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.

DVANCES IN MAGNETIC RESOnance imaging (MRI) have led to faster and therefore less expensive examinations. Several groups, including ours, have reported the development of a rapid MRI examination for the lumbar spine. 1-6 Using rapid MRI early in the care of patients with low back pain might benefit patients by providing a swifter definitive diagnosis, obviating further imaging or referral, and reassuring both patient and physician that there is no serious disease. However, early imaging with rapid MRI risks discovering incidental anatomic findings. In studies of subjects without low back pain, disk herniations are seen in approximately one third, 7-10 disk bulges in half to two thirds, 7,8,10,11 and disk degeneration in

URL: http://www.clinicaltrials.gov. Unique identifier: NCT02239640.