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 following Cities are next to Arlington, TX: 1  Fort Worth is 14.1 miles northwest of Arlington, TX. 2  Grand Prairie is 6.1 miles east of Arlington, TX. 3  Mansfield is 9 miles south of Arlington, TX.  Kennedale is 6.6 miles southwest of Arlington, 1  TX. Pantego is 2 miles northwest of Arlington,  TX.