Authors: Gavin McLaughlin; Noreen Morris; Pierce V Kavanagh; John D Power; Geraldine Dowling; Brendan Twamley; John O'Brien; Gary Hessman; Brian Murphy; Donna Walther; John S Partilla; Michael H Baumann; Simon D Brandt Journal: Drug Test Anal Date: 2017-03-07 Impact factor: 3.345