Online Customer Relationship Management

You are to compose a memo that briefs the three different types of channels:
Intermediation: The e-businesss information accessed through a brick-and-mortar medical health care or education provider
Disintermediation: The e-businesss health care information and services accessed directly, often substituting or bypassing traditional medical service providers
Reintermediation: The e-businesss health care information and services delivered by utilizing third-party online services for medical treatment advice, customer/user data analysis, registration and sponsorship payment processing, or information security protection
(Reintermediation may also include the e-businesss marketing channel strategies that combine online click-and-order information access with on-ground brick-and-mortar service delivery)