RT Journal Article SR Electronic T1 Safer ‘chemsex’: GPs’ role in harm reduction for emerging forms of recreational drug use JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 4 OP 5 DO 10.3399/bjgp16X683029 VO 66 IS 642 A1 Richard Ma A1 Seán Perera YR 2016 UL http://bjgp.org/content/66/642/4.abstract AB