Pollock, J., Horrocks, S., Emond, A., Harvey, I., & Shepherd, M. (2002). Health and social factors for health visitor caseload weighting: Reliability, accuracy and current and potential use. Health and Social Care in the Community, 10(2), 82-90. https://doi.org/10.1046/j.1365-2524.2002.00345.x