Indications and outcome of repeat penetrating keratoplasty in India.

BMC Ophthalmol · 2005 · PMC1291374 · PMID 16262912

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an increasing trendno p-value reported

On the basis of these studies it is apparent that corneal regrafts show an increasing trend among indications for penetrating keratoplasty.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.