Variations in the diagnosis and quality of care for pain by primary care physicians: Results from a factorial experiment

Nancy N. Maserejian, ScD1, Jing Yu, MS2, Felicia L. Trachtenberg, PhD2, Lisa D. Marceau, MPH2, Michael A. Fischer, MD3, Jeffrey N. Katz, MD, MSc4 and John B. McKinlay, PhD2
(1)New England Research Institutes, Inc., Watertown, MA, (2)New England Research Institutes, Watertown, MA, (3)Brigham and Women's Hospital, Boston, MA, (4)Brigham and Women's Hospital and Harvard Medical School, Boston, MA