AUTHOR=Di Trana Annagiulia , Pichini Simona , Pacifici Roberta , Giorgetti Raffaele , Busardò Francesco Paolo TITLE=Synthetic Benzimidazole Opioids: The Emerging Health Challenge for European Drug Users JOURNAL=Frontiers in Psychiatry VOLUME=13 YEAR=2022 URL=https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2022.858234 DOI=10.3389/fpsyt.2022.858234 ISSN=1664-0640