A two-arm parallel-group individually randomised prison pilot study of a male remand alcohol intervention for self-efficacy enhancement: the APPRAISE study protocol oleh Dorothy Newbury-Birch, Kate Hunt, Pam Smith, Aisha Holloway, Victoria Guthrie, Gillian Waller, Joanne Boyd, Sharon Mercado, Rosie Stenhouse, Richard Anthony Parker, Philip Conaglen, Simon Coulton, Gertraud Stadler, Jeremy Bray, Jennifer Ferguson, Arun Sondhi, Kieran Lynch, Jessica Rees