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.
Arlington is a city in the U.S. state of Texas, within the DallasâFort WorthâArlington metropolitan area and Tarrant County. According to the U.S. Census Bureau's estimate, the city had a population of almost 379,577 at the end of 2013, making it the third-largest municipality in the metropolitan area.