O(2) extraction is a key parameter determining the oxygenation status of malignant tumors and normal tissues.

MLA

Vaupel, Peter, et al. “O(2) Extraction Is a Key Parameter Determining the Oxygenation Status of Malignant Tumors and Normal Tissues.” International Journal of Oncology, vol. 22, no. 4, Apr. 2003, pp. 795–98. EBSCOhost, widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=cmedm&AN=12632070&authtype=sso&custid=ns315887.

APA

Vaupel, P., Thews, O., Kelleher, D. K., & Konerding, M. A. (2003). O(2) extraction is a key parameter determining the oxygenation status of malignant tumors and normal tissues. International Journal of Oncology, 22(4), 795–798.

Chicago

Vaupel, Peter, Oliver Thews, Debra K Kelleher, and Moritz A Konerding. 2003. “O(2) Extraction Is a Key Parameter Determining the Oxygenation Status of Malignant Tumors and Normal Tissues.” International Journal of Oncology 22 (4): 795–98. http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=cmedm&AN=12632070&authtype=sso&custid=ns315887.