{Reference Type}: Letter {Title}: Successful treatment of complicated infective endocarditis due to Enterococcus faecium in a patient with substance use disorder using oritavancin as sequential maintenance therapy. {Author}: Giuliano G;Benedetti S;Sambo M;Pierguidi F;Tumbarello M; {Journal}: Clin Microbiol Infect {Volume}: 30 {Issue}: 4 {Year}: 2024 Apr 20 {Factor}: 13.31 {DOI}: 10.1016/j.cmi.2024.01.008