A constant-force technique to measure corneal biomechanical changes after collagen cross-linking.

PLoS One · 2014 · PMC4146533 · PMID 25162621

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highly significantno p-value reported

Differences between the experimental groups were evaluated by the students t-test and considered statistically significant (*) or highly significant (**), when the probability value ( P ) was <0.05 or <0.01, respectively.

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