Before revision: They represent controlling the care from one station to an area -where includes a number of patients- by a nurse, 2 or 3 patients available to a nurse, or only one patient by a nurse UR
After revision: They represent controlling the care from one station to an area -where includes a number of patients- by a nurse, 2 or 3 patients available to a nurse, or only one patient by a nurse URLReferenc