112
Participants
Start Date
February 28, 2013
Primary Completion Date
May 31, 2014
Study Completion Date
May 31, 2014
Vitamin C
for 1 month postoperative period, vitamin C was administered orally to the patients.
Placebo drug
for 1 month postoperative period, placebo medication administered orally to the patients.
Seoul National University Bundang Hospital, Seongnam-si
Seoul National University Hospital
OTHER