Sperm mtDNA copy number, telomere length, and seminal spermatogenic cells in relation to ambient air pollution: Results of a cross-sectional study in Jing-Jin-Ji region of China

Lixiao Zhou, Lipeng Li, Guimin Hao, Binghua Li, Sujuan Yang, Ning Wang, Jiaming Liang, Hongyue Sun, Shitao Ma, Lina Yan, Chunfang Zhao, Yanjing Wei, Yujie Niu, Rong Zhang