group procurement services, namely puchasing acute care, long-term care, alternative care and outpatient care facilities, pharmacies and physician group practices, health maintenance and preferred provider organizations, hospices and other institutional member agencies with medical and surgical equipment, hospital beds, stretchers and patient testing and laboratory equipment, pharmaceuticals and pharmaceutical supplies (including intravenous fluids and enteral foodstuffs), office furniture and equipment, and janitorial, cleaning and housekeeping supplies, and contract services for equipment repair and maintenance, inventory auditing, pharmaceutical and pharmaceutical supply turns, and the like