Reeves, N., Chandler, S., McLennan, E., Price, A., Boyle, J., Knight, S., Pearce, L. and Moug, S. 2021. Defining the older patient population that require, but do not undergo emergency laparotomy: an observational cohort study protocol. International Journal of Clinical Trials. 8, 2 (Apr. 2021), 138–144. DOI:https://doi.org/10.18203/2349-3259.ijct20210977.