APA (7th ed.) Citation

Gram, I., Lukanova, A., Brill, I., Braaten, T., Lund, E., Lundin, E., . . . Sánchez, M. (2011). Cigarette smoking and risk of histological subtypes of epithelial ovarian cancer in the EPIC cohort study.

Chicago Style (17th ed.) Citation

Gram, I., et al. Cigarette Smoking and Risk of Histological Subtypes of Epithelial Ovarian Cancer in the EPIC Cohort Study. 2011.

MLA (9th ed.) Citation

Gram, I., et al. Cigarette Smoking and Risk of Histological Subtypes of Epithelial Ovarian Cancer in the EPIC Cohort Study. 2011.

Warning: These citations may not always be 100% accurate.