In their 1988 report, The Future of Public Health, the Institutes of Medicine (IOM) defined the three core functions of governmental public health as assessment, policy development, and assurance. The Core Public Health Functions Steering Committee developed the framework for the Essential Services in 1994. This steering committee included representatives from US Public Health Service agencies and other major public health organizations.
Live-work unit simply is a contemporary way of referring to a building that is both the residence and place of business of the proprietor. Certainly the live-work unit doesn't have to be organized in that same way, namely, an apartment on the second story above a storefront or walk-in office.
A studio apartment consists of a single room plus a bathroom. The single room of the apartment must function as the kitchen, living room and bedroom. The kitchen area or kitchenette may be divided from the main living area, or simply be a counter and cabinets along one wall.