APA citiranje

O'Keefe, J. H., Patil, H. R., & Lavie, C. J. (2012). Can Vitamin D Deficiency Break Your Heart? Mayo Foundation.

Citação norma Chicago

O'Keefe, James H., Harshal R. Patil, and Carl J. Lavie. Can Vitamin D Deficiency Break Your Heart? Mayo Foundation, 2012.

MLA citiranje

O'Keefe, James H., Harshal R. Patil, and Carl J. Lavie. Can Vitamin D Deficiency Break Your Heart? Mayo Foundation, 2012.