Table 2.

List of notations and decision variables

Sets
i	Index of physician,
j	Index of resource,
p	Index of patient number,
I	Physician types (i.e. specialist physician and general physician)
J	Resource types (e.g., diagnostic machines, nurse)
Parameters
N	Number of patients in simulation
	Number of current physician type i
	The maximum number of additional physician type i
	Cost of hiring one additional physician type i
	Number of current resource type j
	The maximum number of resource type j
	Cost of adding one more resource type j
	Processing time of patient p in resource type j
	Processing time of patient p when meeting physician type i
Decision Variables
	Number of additional physician type i
	Number of resource type j