The KIND Challenge community intervention to reduce loneliness and social isolation, improve mental health, and neighbourhood relationships: an international randomized controlled trial. - Lim, Michelle H.; Hennessey, Alexandra; Qualter, Pamela; Smith, Ben J.; Thurston, Lily; Eres, Robert; Holt-Lunstad, Julianne (Social Psychiatry & Psychiatric Epidemiology, 2025)