Development of a Virtual Human for Supporting Tobacco Cessation During the COVID-19 Pandemic.

"Conflicts of Interest: MS is the cofounder and chief science officer of Soul Machines (an artificial intelligence company), that employed EL and KL at the time of the research, and contracts EB for consultancy work."

"The authors wish to thank Virginia Arnold, Dongbo Fu, Jaimie Marie Guerra, Aikaterini Botsiou, Vinayak Prasad, and Simone St Claire at the World Health Organization; Kyle Lucas, Hayley Wong Leith, and Richard Ahlfeldt from Rooftop (a content and strategic solutions firm located in South Africa); Amazon Web Services; and Google Cloud for their collaboration. The authors also would like to thank the Soul Machines staff who supported the development of Florence, including Jacqueline Seni, Sophie Su, Veronica Maxam, Emily Robertson, Brook Warner, Adam Calabrese, Tim Wayper, Luke Pascoe, Rick Narvarte, Pauline Bir, Cody Sinnott, Colin Hodges, David Stoll, and Trisha Tripathi."