APA (7th ed.) Citation

Maxwell, P., Pugh, C., & Ratcliffe, P. (2001). Activation of the HIF pathway in cancer.

Chicago Style (17th ed.) Citation

Maxwell, P., C. Pugh, and P. Ratcliffe. Activation of the HIF Pathway in Cancer. 2001.

MLA (9th ed.) Citation

Maxwell, P., et al. Activation of the HIF Pathway in Cancer. 2001.