External Qi of Yan Xin Qigong differentially regulates the Akt and extracellular signal-regulated kinase pathways and is cytotoxic to cancer cells but not to normal cells
The International Journal of Biochemistry & Cell Biology (2006) - Comments
doi: 10.1016/j.biocel.2006.06.002  issn: 1357-2725  pubmed: 16893670 

Xin Yan, Hua Shen, Hongjian Jiang, Chengsheng Zhang, Dan Hu, Jun Wang, Xinqi Wu