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   Xianzhe Yu et al, 2023, Frontiers in Oncology CrossRef
2. Cumulative Sum Analysis of the Learning Curve of Ptosis Surgery: External Levator Advancement versus Müller Muscle-conjunctival Resection
   Mehmet Serhat Mangan et al, 2021, Korean Journal of Ophthalmology CrossRef
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   Tung-Yen Wu et al, 2021, International Surgery CrossRef
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   So Hyun Kang et al, 2023, Scientific Reports CrossRef