To this end, we identified the citations of a sample of 31 SREL, reaching a total sample of 1812 citations (ranging from 1 to 303 citations per SREL). Legend: Total methodological citations n = 189 Citations according to the recommendation status of the systematic review of the ethical lite... Most citations (64%, I n i = 1164) were retrieved from SREL that did not issue recommendations. In our study, the second most common use of citations from SREL indicate I mentions i ( I n i = 628, 35% of all citations; I n i = 556 thematic citations, I n i = 72 methodological citations; see Fig. At this stage, citing publications were excluded if (a) they did not mention the SREL of interest in the reference list; (b) if they did not cite the SREL in the text; or (c) if they were duplicates of already selected citing publications. 8, methodological citations tend to be mere mentions or to be used as support, especially when they are citations from SREL on ethical issues and ethical arguments ( I n i = 28, 15%). [Extracted from the article]