Παραπομπή APA

Friis, S., Sørensen, H. T., McLaughlin, J. K., Johnsen, S. P., Blot, W. J., & Olsen, J. H. (2003). A population-based cohort study of the risk of colorectal and other cancers among users of low-dose aspirin. Nature Publishing Group.

Παραπομπή Chicago Style

Friis, S., H T. Sørensen, J K. McLaughlin, S P. Johnsen, W J. Blot, και J H. Olsen. A Population-based Cohort Study of the Risk of Colorectal and Other Cancers Among Users of Low-dose Aspirin. Nature Publishing Group, 2003.

Παραπομπή MLA

Friis, S., et al. A Population-based Cohort Study of the Risk of Colorectal and Other Cancers Among Users of Low-dose Aspirin. Nature Publishing Group, 2003.

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