Unilateral Thalamic Lesions in Premature Infants: Risk Factors and Short-Term Prognosis - van Wezel-Meijler, G; Hummel, T Z; Oosting, J; de Groot, L; Sie, L T L; Huisman, J; Lafeber, H N; van der Knaap, M S (Neuropediatrics, 1999)