DOI: 10.1055/s-00000031

Klinische Monatsblätter für Augenheilkunde

References

Wagner H, Barr JT, Zadnik K.
collaborative longitudinal evaluation of keratoconus (CLEK) study: methods and findings to date.

Cont Lens Anterior Eye 2007;
30: 223-232
doi:10.1016/j.clae.2007.03.001

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