Howard Robert Reed, Daniel Nettle, Fiorella Parra-Mujica, Graham Stark, Richard Wilkinson, Matthew Thomas Johnson, Elliott Aidan Johnson. "Examining the relationship between income and both mental and physical health among adults in the UK: Analysis of 12 waves (2009–2022) of Understanding Society." PLoS ONE (2025). https://doi.org/10.1371/journal.pone.0316792