600
Participants
Start Date
October 31, 2013
Primary Completion Date
February 28, 2015
Study Completion Date
April 30, 2015
Dexamethasone
epidural steroid injection using dexamethasone
Betamethasone
epidural steroid injection using betamethasone
Seoul National University Bundang Hospital, Seongnam-si
Seoul National University Bundang Hospital
OTHER