Erratum in: “Diagnosis of Plus Disease in Retinopathy of Prematurity Using Retinal Image multiScale Analysis” by Gelman et al. ( Invest Ophthalmol Vis Sci. 2005;46:4734–4738.)
In the third paragraph of the Methods, the fourth sentence should read, “Normalized vectors T1 and T2 are formed by points along the skeleton (Fig. 2a), and the angle (θ) between each pair of vectors is obtained by computing the arccosine of their dot product.”