Hamartoma

• Arkansas Children's Hospital — Little Rock, Arkansas, United States
• Rancho Los Amigos National Rehabilitation Center (RLANRC) — Downey, California, United States
• University of California San Francisco — San Francisco, California, United States
• Northwest Florida Clinical Research Group — Gulf Breeze, Florida, United States

• Nucleus Network Melbourne — Melbourne, Victoria, Australia

• Arkansas Children's Research Institute — Little Rock, Arkansas, United States
• UCLA Mattel Children's Hospital, TSC Center — Los Angeles, California, United States
• Children's Hospital of Orange County — Orange, California, United States
• University of California, San Diego — San Diego, California, United States

• The Ohio State University Wexner Medical Center — Columbus, Ohio, United States

• David Geffen School of Medicine at UCLA (Site #: 101) — Los Angeles, California, United States
• Kennedy Krieger Institute (Site #: 110) — Baltimore, Maryland, United States
• Boston Children's Hospital (Site #: 102) — Boston, Massachusetts, United States
• William Beaumont Hospital - Royal Oak (Site #: 104) — Royal Oak, Michigan, United States

• Stanford University — Palo Alto, California, United States
• Boston Children's Hospital — Boston, Massachusetts, United States
• Cleveland Clinic — Cleveland, Ohio, United States

Not specified

• Rima Nabbout — Paris, France

• Beijing Children's Hospital — Beijing, China

• Fujita Health University Hospital — Toyoake, Aichi-ken, Japan
• Gunma University Hospital — Maebashi, Gunma, Japan
• Osaka University Hospital — Suita, Osaka, Japan
• Seirei Hamamatsu General Hospital — Hamamatsu, Shizuoka, Japan