RT Journal Article SR Electronic T1 N-Acetylcysteine augmentation in refractory obsessive–compulsive disorder JF Journal of Psychiatry and Neuroscience JO J Psychiatry Neurosci FD Canadian Medical Association SP 215 OP 216 DO 10.1503/jpn.180179 VO 44 IS 3 A1 Sreenivasa Bhaskara YR 2019 UL http://jpn.ca/content/44/3/215.abstract