Blepharoptosis

• Leiden University Medical Center — Leiden, South Holland, Netherlands
• Leiden University Medical Center — Leiden, Netherlands

• Anhui Provincial Hospital — Hefei, Anhui, China
• The Second Hospital of Anhui Medical University — Hefei, Anhui, China
• Beijing Chaoyang Hospital, Capital Medical University — Beijing, Beijing Municipality, China
• Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong — Shantou, Guangdong, China

• Montefiore Medical Center — The Bronx, New York, United States

• Zhongshan Ophthalmic Center — Guangzhou, Guangdong, China

• New Century Ophthalmology — Oxford, North Carolina, United States

• Rey Juan Carlos Hospital — Móstoles, Madrid, Spain

• Sheba Medical Center — Ramat Gan, Israel

• E-Da Hospital — Kaohsiung City, Taiwan
• Shin Kong Wu Ho-Su Memorial Hospital — Taipei, Taiwan

Not specified

• Tulane University Medical Center — New Orleans, Louisiana, United States