The Company derives the majority of its revenues from providing patient management and network solutions services to payors of workers’ compensation benefits, automobile insurance claims and group health insurance benefits. Patient management services include claims administration, utilization review, medical case management, and vocational rehabilitation. Network solutions services include fee schedule auditing, hospital bill auditing, coordination of independent medical examinations, diagnostic imaging review services and preferred provider referral services. The percentages of revenues attributable to patient management and network solutions services for the fiscal years ended March 31, 2019, 2018 and 2017 are listed below.

	2019			2018			2017
Patient management services		61.8	%		56.7	%		55.6	%
Network solutions services		38.2	%		43.3	%		44.4	%
		100.0	%		100.0	%		100.0	%

The Company’s management is structured geographically with regional vice presidents who are responsible for all services provided by the Company in his or her particular region and responsible for the operating results of the Company in multiple states. These regional vice presidents have area and district managers who are also responsible for all services provided by the Company in their given area and district.

Under ASC 280-10, two or more operating segments may be aggregated into a single operating segment for financial reporting purposes if aggregation is consistent with the objective and basic principles, if the segments have similar economic characteristics, and if the segments are similar in each of the following areas: (i) the nature of products and services, (ii) the nature of the production processes, (iii) the type or class of customer for their products and services, and (iv) the methods used to distribute their products or provide their services. The Company believes each of the Company’s regions meet these criteria as they provide similar managed care services to similar customers using similar methods of productions and similar methods to distribute their services. All of the Company’s regions perform both patient management and network solutions services.

Because the Company believes it meets each of the criteria set forth above and each of the Company’s regions has similar economic characteristics, the Company aggregates its results of operations in one reportable operating segment.