Correction to: Melatonin attenuates detrimental effects of diabetes on the niche of mouse spermatogonial stem cells by maintaining Leydig cells - Zhaoyu Du; Shuanshuan Xu; Shuxian Hu; Hong Yang; Zhe Zhou; Kuldip Sidhu; Yiliang Miao; Zhonghua Liu; Wei Shen; Russel J. Reiter; Jinlian Hua; Sha Peng (Cell Death and Disease)