APA (7th ed.) Citation

von Ehrlich, B. (2012). Heart-failure and magnesium - what is proven? Trace Elements & Electrolytes, 29(3), 218.

Chicago Style (17th ed.) Citation

von Ehrlich, B. "Heart-failure and Magnesium - What Is Proven?" Trace Elements & Electrolytes 29, no. 3 (2012): 218.

MLA (9th ed.) Citation

von Ehrlich, B. "Heart-failure and Magnesium - What Is Proven?" Trace Elements & Electrolytes, vol. 29, no. 3, 2012, p. 218.