Erratum to: ADAMTS-4 promotes neurodegeneration in a mouse model of amyotrophic lateral sclerosis. Issue 1 (December 2016) - Lemarchant, Sighild; Pomeshchik, Yuriy; Kidin, Iurii; Kärkkäinen, Virve; Valonen, Piia; Lehtonen, Sarka; Goldsteins, Gundars; Malm, Tarja; Kanninen, Katja; Koistinaho, Jari