McConnell, T., Scott, D., Wong, G., Hill, L., Johnson, M. J., Millerick, Y., Ross, J., Atkinson, C., Cooper, L., Burden, J., Campbell, R., Kerr, A., Thomas, H., Reid, J. (2026). Optimising delivery of integrated palliative care and heart failure services: A realist evaluation protocol (PalliatHeartSynthesis II). PLoS ONE. https://doi.org/10.1371/journal.pone.0341418