APA (7th ed.) Citation

Breithardt, O., Kühl, H., & Stellbrink, C. (2002). IMAGES IN CARDIOLOGY. Heart, 88(4), 440.

Chicago Style (17th ed.) Citation

Breithardt, O.A, H.P Kühl, and C. Stellbrink. "IMAGES IN CARDIOLOGY." Heart 88, no. 4 (2002): 440.

MLA (9th ed.) Citation

Breithardt, O.A, et al. "IMAGES IN CARDIOLOGY." Heart, vol. 88, no. 4, 2002, p. 440.