• American Academy of Physician Assistants Information Center, 950 North Washington St., Alexandria, VA 22314-1552. Internet: http://www.aapa.org

For a list of accredited programs and a catalog of individual PA training programs, contact:

• Association of Physician Assistant Programs, 950 North Washington St., Alexandria, VA 22314-1552. Internet: http://www.apap.org

For eligibility requirements and a description of the Physician Assistant National Certifying Examination, contact:

• National Commission on Certification of Physician Assistants, Inc., 6849 –B Peachtree Dunwoody Rd., Atlanta, GA 30328. Internet: http://www.nccpa.net