Cessation of methadone maintenance treatment using buprenorphine: transfer from methadone to buprenorphine and subsequent buprenorphine reductions. - Breen,C.L.; Harris,S.J.; Lintzeris,N.; Mattick,R.P.; Hawken,L.; Bell,J.; Ritter,A.J.; Lenné,M.; Mendoza,E. (Drug Alc Dependence, 2003)