APA (7th ed.) Citation

Heffernan Mary E & Peterson Catherine A. (2008). Serum tumor necrosis factor-alpha concentrations are negatively correlated with serum 25(OH)D concentrations in healthy women. BMC.

Chicago Style (17th ed.) Citation

Heffernan Mary E and Peterson Catherine A. Serum Tumor Necrosis Factor-alpha Concentrations Are Negatively Correlated with Serum 25(OH)D Concentrations in Healthy Women. BMC, 2008.

MLA (9th ed.) Citation

Heffernan Mary E and Peterson Catherine A. Serum Tumor Necrosis Factor-alpha Concentrations Are Negatively Correlated with Serum 25(OH)D Concentrations in Healthy Women. BMC, 2008.

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