Effects of morphine analgesia on diagnostic accuracy in emergency department patients with abdominal pain: a prospective, randomized trial Stephen H Thomas, MD, MPH, William Silen, MD, FACS, Farah Cheema, MD, Andrew Reisner, MD, Sohail Aman, MD, Joshua N Goldstein, MD, PhD, Alan M Kumar, MD, Thomas O Stair, MD Journal of the American College of Surgeons Volume 196, Issue 1, Pages 18-31 (January 2003) DOI: 10.1016/S1072-7515(02)01480-1
Figure 1 Study schema. Journal of the American College of Surgeons 2003 196, 18-31DOI: (10.1016/S1072-7515(02)01480-1)
Figure 2 Examining physician evaluation. LLQ, left lower quadrant; LUQ, left upper quadrant; RLQ, right lower quadrant; RUQ, right upper quadrant. Journal of the American College of Surgeons 2003 196, 18-31DOI: (10.1016/S1072-7515(02)01480-1)