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Papers published by Dr Holtmann:

Erratum

The combination of corneal collagen crosslinking with riboflavin and ultraviolet-a irridation and excimer laser surgery.

Ralla B, Holtmann C, Geerling G

Clinical Ophthalmology 2013, 7:599-600

Published Date: 26 March 2013

Letter

Letter to the editor

Ralla B, Holtmann C, Geerling G

Clinical Ophthalmology 2013, 7:243-246

Published Date: 5 February 2013