25
Participants
Start Date
March 1, 2018
Primary Completion Date
December 31, 2019
Study Completion Date
May 31, 2020
taVNS
taVNS was applied using a Huatuo stimulator (SDZ-IIB) developed by Suzhou manufacture of Medical Device and Material. Stimulation parameters was 1 mA of electrical current at a frequency of 20 Hz with pulse duration ≤ 1 ms, for 30min,administered twice daily.
Beijing Tongren Hospital, Beijing
Beijing Tongren Hospital
OTHER