1. Schulz A et al. NCL diseases – clinical perspectives. Biochimica et Biophysica Acta. 2013;1832:1801-1806. 2. Mole SE and Williams RE. Neuronal ceroid-lipofuscinoses. 2001 Oct 10 \[Updated 2013 Aug 1]. In: Pagon RA, Adam MP, Ardinger HH et al. eds. GeneReviews® \[internet]. Seattle, WA: University of Washington; 1993-2016. 3. Schulz A et al. Neuronal ceroid lipofuscinosis-2 (CLN2) disorder, a type of Batten disease caused by TPP1 enzyme deficiency: current knowledge of the natural history from international experts. Poster session presented at: The Society for the Study of Inborn Errors of Metabolism (SSIEM) Annual Symposium; September 2015; Lyon, France. 4. Williams RE et al. Expert opinion on the management of CLN2 disease. Poster session presented at: The 12th Annual WORLD Symposium; February – March 2016; San Diego, CA.