Alterations in synapses and mitochondria induced by acute or chronic intermittent hypoxia in the pre-Bötzinger complex of rats: an ultrastructural triple-labeling study with immuno... oleh Junjun Kang, Naining Lu, Shoujing Yang, Baolin Guo, Yuanyuan Zhu, Shengxi Wu, Xiaofeng Huang, Margaret T. T. Wong-Riley, Ying-Ying Liu