Line represents equality of donations to A-rated and non–A-rated candidates. Circle sizes are proportional to total political action committee contributions, in dollars. AAD indicates American Academy of Dermatology; AAENT, American Academy of Otolaryngology; AAFP, American Academy of Family Physicians; AAN, American Academy of Neurology; AANS, American Association of Neurologic Surgeons; AAO, American Academy of Ophthalmology; AAOMFS, American Association of Oral and Maxillofacial Surgery; AAOS, American Association of Orthopaedic Surgeons; ACC, American College of Cardiology; ACEP, American College of Emergency Physicians; ACOG, American Congress of Obstetricians & Gynecologists; ACP, American College of Physicians Services; ACR, American College of Radiology; ACRh, American College of Rheumatology; ACS, American College of Surgeons; AMA, American Medical Association; APA, American Psychiatric Association; ASA, American Society of Anesthesiologists; ASIPP, American Society of Interventional Pain Physicians; ASPS, American Society of Plastic Surgeons; ASTRO, American Society for Radiation Oncology; CAP, College of American Pathologists; NASS, National Association of Spine Specialists; STS, Society of Thoracic Surgeons; and SVS, Society for Vascular Surgery.