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Femtosecond laser-assisted lock-and-key shaped penetrating keratoplasty

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  • Funding The study was funded in part by an unrestricted grant from Abbott Medical Optics. The sponsor has no role in study design and collection, analysis and interpretation of data. The authors have no financial interests or commercial affiliations.

  • Competing interests None.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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