Daryl is an Associate Professor of Intensive Care Medicine in the School of Public Health and Preventive Medicine at Monash University. In 2015, he completed his PhD thesis entitled "The Rapid Response Team: Patient characteristics and resource implications" under the supervision of Professors Rinaldo Bellomo and Graeme Hart. The first area of investigation involved assessment of the uptake of MET services in intensive care unit (ICU) equipped hospitals in Australia and New Zealand, particularly in relation to published literature supporting their effectiveness. In conjunction with the Australian Commission for Quality and Safety in Health Care (ACQSHC) and Australian and New Zealand Intensive Care Society Centre for Outcomes and Resources Evaluation (ANZICS-CORE), a 40 hospital study was conducted to assess: 1) the changes in MET call rates with time, and 2) the in-hospital mortality of MET patients in comparison to hospitalized patients. The second major area of the PhD involved assessment of the epidemiology of the MET patient. A seven hospital study was completed to perform a detailed analysis of the role of METs in end-of-life care planning in hospitalized patients. It also assessed the circadian activation of MET calls to confirm or refute the findings seen at the Austin Hospital. Finally, the thesis included several reviews related to MET systems and the broader concept of deteriorating patients. This thesis has provided new insights into the causes and outcomes of deterioration in hospitalized Australian patients, and will lead to strategies to improve the outcomes and safety of hospital admissions.