Resumen: Following publication of the original article [1], we have been notified that there are some parts in the article text that need to be changed as per below:
Table 2 Ratings of methodological quality by EPHPP should change Blinding rating of Busch et al. (2017) [43] from Weak to Moderate and Global rating from Moderate to Strong;
Abstract text part should be changed to: One trial received weak methodological quality, five moderate, and two strong;
Results text part in Methodological quality assessment should be changed to: Overall, two studies received a methodological quality rating of strong [43, 49], five studies of moderate [45–48, 50], and one study of weak [44];
Discussion text part should be changed to: Regarding the quality of the studies, it is of note that only two of the studies reached the qualification of strong methodological quality [43, 49]. Idioma: Inglés DOI: 10.1186/s13011-020-00274-6 Año: 2020 Publicado en: Substance Abuse Treatment Prevention and Policy 15, 1 (2020), 37 [1 pp] ISSN: 1747-597X Factor impacto JCR: 2.583 (2020) Categ. JCR: SUBSTANCE ABUSE rank: 23 / 37 = 0.622 (2020) - Q3 - T2 Factor impacto SCIMAGO: 0.75 - Psychiatry and Mental Health (Q2) - Health Policy (Q2)