The American College of Physicians (ACP Press) is a national organization of internists — physicians who specialize in the prevention, detection and treatment of illnesses in adults. ACP is the largest medical-specialty organization and second-largest physician group in the United States. Its membership of 129,000 includes internists, internal medicine subspecialists, and medical students, residents, and fellows.
American Psychiatric Association Publishing is the world’s premier publisher of books, journals, and online products on psychiatry, mental health and behavioral science. American Psychiatric Association Publishing offer authoritative, up-to-date and affordable information geared toward psychiatrists, other mental health professionals, psychiatric residents, and medical students.