Abstinence duration and psychopathology among addiction outpatients during 18 months of COVID-19.

"Conflict of interest RP-Á has received speaker honorariums from Angelini, Casen Recordati, Exeltis, Lundbeck, MSD, Mundipharma, Rubió, Servier, and Takeda. GO-H has received speaker honorarium from Rubió, Casen Recordati and Lundbeck. ER-C has received speaker honorariums from Janssen-Cilag, Lundbeck, Otsuka, Pfizer, Lilly, Servier, Rovi, and Juste. She has received financial compensation for projects with Lundbeck, Esteve, Pfizer, Rovi, Exeltis, Servier, and Eisai. She has received financial compensation for her participation as a board member of Janssen-Cilag. JR-Q has been on the speakers’ bureau and/or acted as consultant for Janssen-Cilag, Novartis, Shire, Takeda, Bial, Shionogi, Sincrolab, Novartis, BMS, Medice, Rubió, Uriach and Raffo. The Department of Psychiatry chaired by him received unrestricted educational and research support from the following companies in the last 3 years: Janssen- Cilag, Shire, Oryzon, Roche, Psious, and Rubió. LG-L has received fees to give talks for Casen Recordati, Janssen-Cilag, Lundbeck, Servier, Otsuka, and Pfizer. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest."

"The author(s) declare that no financial support was received for the research, authorship, and/or publication of this article."