@article{ref1,
title="Commentary: Efficacy and safety of transcranial direct current stimulation as an add-on treatment for bipolar depression: A randomized clinical trial",
journal="Frontiers in human neuroscience",
year="2018",
author="Hu, Z.-y. and Liu, X. and Zheng, H. and Zhou, D.-s.",
volume="12",
number="",
pages="-",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1662-5161",
doi="10.3389/fnhum.2018.00480",
url="http://dx.doi.org/10.3389/fnhum.2018.00480"
}