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 borders Kennedale, Grand Prairie, Mansfield and Fort Worth, and surrounds the smaller communities of Dalworthington Gardens and Pantego. Arlington is the headquarters of the Nuclear Regulatory Commission Region IV. Arlington is also the largest city in the state that is not a county seat.