Study	Reason for exclusion
Bartu 2006	Substance treatment for illicit drugs, not alcohol.
Bergman 1992	Study design not randomised control trial.
Brewer 2008	Study design not randomised control trial.
Ferreira 2007	Study design not randomised control trial; not in alcohol treatment.
Flores‐Huerta 1992	Study design not randomised control trial; not in alcohol treatment.
Fuller 2004	Study design not randomised control trial, opinion.
Heading 2008	Study design not randomised control trial, review article, not pregnant women.
Kanto 1982	Study design not randomised control trial, review article, participants not in alcohol treatment.
Laegreid 1992	Study design not randomised control trial, not in alcohol treatment.
Laegreid 1992a	Study design not randomised control trial, not in alcohol treatment.
Lewis 1979	Study design not randomised control trial, letter to the editor.
Lingford‐Hughes 2004	Study design not randomised control trial, review, not stratified by pregnancy status.
Loebstein 1997	Study design not randomised control trial, participants not in alcohol treatment.
Maier 1997	Study design not randomised control trial, not in alcohol treatment.
Matalon 2002	Study design not randomised control trial, not in alcohol treatment.
Mattison 2006	Study design not randomised control trial, review article, participants not in alcohol treatment.
Mattson 2006	Study design not randomised control trial, not in alcohol treatment.
Noland 2003	Study design not randomised control trial, not in alcohol treatment.
Nora 1977	Study design not randomised control trial.
Ornoy 1998	Study design not randomised control trial.
Ostrea 2006	Study design not randomised control trial, not in alcohol treatment.
Ramkisson 2008	Study design not randomised control trial, not in alcohol treatment.
Rayburn 2004	Study design not randomised control trial, review article.
Reitnauer 1997	Study design not randomised control trial.
Rosenberg 1983	Study design not randomised control trial.
Ryberg 2003	Study design not randomised control trial, review article.
Scanlon 1975	Study design not randomised control trial, letter to the editor.
Schottenfeld 1995	Study design not randomised control trial, review.
Stuppaeck 1992	Population not pregnant women.
Vocci 1995	Study design not randomised control trial, review.
Vocci 2005	Study design not randomised control trial, not in pregnancy.
Wozniak 2006	Study design not randomised control trial, not in alcohol treatment.
Wright 2001	Study design not randomised control trial, review article.