Puberty, Precocious

• Chengdu Women's and Children's Central Hospital — Chengdu, China
• Jiangxi Provincial Children's Hospital — Nanchang, China
• Children's Hospital of Nanjing — Nanjing, China
• Tangshan Maternal & Child Health Hospital — Tangshan, China

• Pediatric Endocrinology Associates /ID# 200629 — Long Beach, California, United States
• Rady Children's Hospital San Diego /ID# 202491 — San Diego, California, United States
• Children's Hospital Colorado /ID# 201645 — Aurora, Colorado, United States
• Pediatric Endocrine Associates /ID# 201089 — Greenwood Village, Colorado, United States

• Research Site — Birmingham, Alabama, United States
• Research Site — Miami, Florida, United States
• Research Site — Lexington, Kentucky, United States
• Research Site — Baton Rouge, Louisiana, United States

• Children's Hospital of Fudan University — Shanghai, China

• Hôpital Hotel-Dieu (CHU) — Angers, France
• Hôpital Saint-Jacques — Besançon, France
• Medical Centre — Bordeaux, France
• Hôpital du Bocage — Dijon, France

• Massachusetts General Hospital — Boston, Massachusetts, United States

• The Children's Hospital, Zhejiang University School of Medicine — Wuhan, Hubei, China
• Childrens Hospital of Hunan province — Changsha, Hunan, China
• Jiangsu Province Hosptial — Nanjing, Jiangsu, China
• Children's Hospital of Jiangxi province — Nanchang, Jiangxi, China

• Beijing, Beijing Municipality, China
• Wuhan, Hubei, China
• Changsha, Hunan, China
• Nanjing, Jiangsu, China

Not specified

• Hospital de Niños Ricardo Gutierrez, División de Endocrinología — Buenos Aires, Argentina