Retraction statement: 'S14G-humanin inhibits Aβ1-42 fibril formation, disaggregates preformed fibrils, and protects against Aβ-induced cytotoxicity in vitro' by Wei Zhang, Ying Du, Miao Bai, Ye Xi, Zhuyi Li and Jianting Miao J. Peptide Sci. 2013; 19: 159-165. DOI:10.1002/psc.2484.