AUTHOR=Ou Hang , Zhang Yi , He Weiqi TITLE=Commentary: Clinical Improvements in Comorbid Gambling/Cocaine Use Disorder (GD/CUD) Patients Undergoing Repetitive Transcranial Magnetic Stimulation (rTMS) JOURNAL=Frontiers in Neural Circuits VOLUME=14 YEAR=2020 URL=https://www.frontiersin.org/journals/neural-circuits/articles/10.3389/fncir.2020.00039 DOI=10.3389/fncir.2020.00039 ISSN=1662-5110