CHROMATOGRAPHY COLUMNS, FILTER MEMBRANES, AND AFFINITY CHEMICALS THEREFOR, FOR USE IN LABORATORIES

Administration and maintenance of a network of health care professionals to provide health care to enrolees. Health care utilization and review services, namely, the evaluation of the appropriateness, need, and sufficiency of health care services, procedures and facilities

computer software for monitoring a user's access to a website and for developing user profiles based on reports generated therefrom to be used in advertising and customizing that website