Print Intervention Characteristics/Basic Study Process: Each participant took one placebo and a 24 hour-dose of sustained-release morphine daily, 12 hours apart. For one week participants took the active dose in the morning; for one week they took the active dose in the evening.
Arlington is a principal city in the U.S. state of Texas, located in Tarrant County. It is part of the Mid-Cities region of the DallasâFort WorthâArlington metropolitan area, approximately 12 miles (19 km) east of downtown Fort Worth and 20 miles (32 km) west of downtown Dallas.
The City of Arlington had a population of 908 as of July 1, 2017. The primary coordinate point for Arlington is located at latitude 44.3635 and longitude -97.1344 in Kingsbury County. The formal boundaries for the City of Arlington (see map below) encompass a land area of 1.66 sq. miles and a water area of 0 sq. miles. Kingsbury County is in the Central time zone (GMT -6). The elevation is 1,844 feet. While the primary coordinates for City of Arlington are located in Kingsbury County, it should be noted that the formal boundaries for this community also extend into and Brookings County. The City of Arlington (GNIS ID: 1267267) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent.