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Survey report on keratoplasty in China: A 5-year review from 2014 to 2018

Fig 3

Tendency of preferred surgical techniques.

ALK = anterior lamellar keratoplasty; PK = penetrating keratoplasty; EK = endothelial keratoplasty.

Fig 3

doi: https://doi.org/10.1371/journal.pone.0239939.g003