APA style. APA Style is a writing style and format for academic documents such as journal articles and books. It is described in the style guide of the American Psychological Association (APA), which is titled the Publication Manual of the American Psychological Association.
A pain doctor, also called a pain specialist or pain management specialist, is a medical doctor (M.D.) or doctor of osteopathy (D.O.) who specializes in pain medicine.
The best way to be referred to a pain management specialist is through your primary care physician. Most pain physicians work closely with their patients' primary care physicians to insure good communication, which in turn helps provide the optimum treatment for their patients.