Training lay counselors with virtual agents to promote vaccination. - Prasanth Murali; Farnaz Nouraei; Mina Fallah; Aisling Kearns; Keith Rebello; Teresa O'Leary; Rebecca B. Perkins; Natalie Pierre Joseph; Julien Dedier; Michael K. Paasche-Orlow; Timothy W. Bickmore (IVA, 2022)