RT Journal Article SR Electronic T1 Novel psychoactive substances: the rising wave of ‘legal highs’ JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 8 OP 9 DO 10.3399/bjgp16X683053 VO 66 IS 642 A1 Farah Gilani YR 2016 UL http://bjgp.org/content/66/642/8.abstract AB