Thomas A, Danon L, Christensen H, Northstone K, Smith D, Nixon E, Trickey A, Hemani G, Sauchelli S, Finn A, Timpson N, Brooks-Pollock E. Limits of lockdown: characterising essential contacts during physical distancing. Wellcome Open Res. 2021 May;6:116. doi: 10.12688/wellcomeopenres.16785.1
Davis A, Mehrotra S, Holl J, Daskin MS. Nurse staffing under demand uncertainty to reduce costs and enhance patient safety. Asia Pac J Oper. 2014 Feb;31(1):1-19. doi: 10.1142/S0217595914500055
Michels KB, Rothman KJ. Update on unethical use of placebos in randomised trials. Bioethics. 2003 Apr;17(2):188-204.