Lakatos, B., Stoeckle, M., Elzi, L., Battegay, M. and Marzolini, C. (2014) “Gastrointestinal bleeding associated with rivaroxaban administration in a treated patient infected with human immunodeficiency virus”, Swiss Medical Weekly, 144(0304), p. w13906. doi: 10.4414/smw.2014.13906.