150
Participants
Start Date
March 31, 2013
Primary Completion Date
March 31, 2015
Study Completion Date
March 31, 2016
Cryotherapy
up to a maximum of four treatments every 21-28 days
laser
up to a maximum of four treatments every 21-28 days
The 306 Hospital of PLA, Beijing
Peking University
OTHER
The 306 Hospital of People's Liberation Army
OTHER