1. Asante EO, Eberhart CS, Ising JJ, et al.Staff utilization survey. Sudbury, MA: American Healthcare Radiology Administrators, 2001:15-27
2. Barnes RM.Motion and time study: design and measurement of work. New York: Wiley, 1966
3. Hanwell LL, Conway JM.Utilization of imaging staff: measuring productivity. Sudbury, MA: American Healthcare Radiology Administrators, 1996:1-30
4. MacEwan DW. Radiology workload system for diagnostic radiology: productivity enhancement studies.J Can Assoc Radiol1982; 33:182-196
5. Time Requirements in Performing Body CT Studies