24
Participants
Start Date
July 31, 2012
Primary Completion Date
February 28, 2013
Study Completion Date
February 28, 2013
nitric oxide gel
"1. st gel: sodium nitrites,BID local use X 28 days~2. nd gel: maleic/ascorbic acids ,BID local use X 28 days"
placebo gel
placebo gel,BID local use X 28 days
China Medical University Hospital, Taichung
China Medical University Hospital
OTHER