42 computer services, namely, leasing access time to computer databases of scientific information, resources, and reference materials in the field of cardiology; providing a database of scientific information, resources, and reference materials in the field of cardiology; searching and retrieving scientific information, resources, and reference materials in the field of cardiology; creating and providing indexes of scientific information, resources, and reference materials in the field of cardiology; providing an online link to scientific information, resources, and reference materials in the field of cardiology, providing a computer database in the nature of a computer bulletin board in the field of cardiology; online information services, namely, providing scientific information in the field of cardiology; and online research services in the field of cardiology