Johnson, C.D., Esquela-Kerscher, A., Stefani, G., Byrom, M., Kelnar, K., Ovcharenko, D., Wilson, M., Wang, X., Shelton, J., Shingara, J., Chin, L., Brown, D., & Slack, F.J. The let-7 microRNA represes cell proliferation pathways in human cells. Cancer Research 2007, 67: 7713-7722. doi: 10.1158/0008-5472.CAN-07-1083.