Roberts, S., John, A., Lewis, K. E., Brown, J., Lyons, R., & Williams, J. (2019). Weekend admissions and mortality for major acute disorders across England and Wales: Record linkage cohort studies. BMC Health Services Research, 19(1), . doi:10.1186/s12913-019-4286-8

Roberts, Stephen, Ann John, Keir E. Lewis, Jonathan Brown, Ronan Lyons, and John Williams. "Weekend Admissions and Mortality for Major Acute Disorders Across England and Wales: Record Linkage Cohort Studies." BMC Health Services Research 19, no. 1 (2019).

Roberts, Stephen, et al. "Weekend Admissions and Mortality for Major Acute Disorders Across England and Wales: Record Linkage Cohort Studies." BMC Health Services Research 19.1 (2019).