Hodgetts, S., Gallagher, P., Stow, D., Ferrier, I. N., & O'Brien, J. T. (2017). The impact and measurement of social dysfunction in late‐life depression: an evaluation of current methods with a focus on wearable technology. International Journal of Geriatric Psychiatry, 32(3), https://doi.org/10.1002/gps.4632