Sousa, KMonteiro, TFranqueira, NFaria-Correia, FLeite, RMendes, JVaz, F2015-02-272015-02-272014The 5th World Congress on COPHy. Lisboa, Portugal. 20-23 Março 2014http://hdl.handle.net/10400.23/823engQueratoconeDoenças da CórneaCorneal Segment Rings Based on New Nomograms for Keratoconus: Surgical Techniqueconference object