APA aipamena

Straub, L., Riedel, J., Luppa, P. B., Wissing, J., Artmann, A., Kiechle, M., & Seifert-Klauss, V. R. (2017). Mammographic Density and Vitamin D Levels – A Cross-sectional Study. Geburtshilfe Frauenheilkd.

Chicago Style aipamena

Straub, Loreen, Johanna Riedel, Peter B. Luppa, Johanna Wissing, Almut Artmann, Marion Kiechle, and Vanadin Regina Seifert-Klauss. "Mammographic Density and Vitamin D Levels – A Cross-sectional Study." Geburtshilfe Frauenheilkd 2017.

MLA aipamena

Straub, Loreen, et al. "Mammographic Density and Vitamin D Levels – A Cross-sectional Study." Geburtshilfe Frauenheilkd 2017.