Duncan, S. M., & Amrhein, T. J. (2012). Phase Contrast. In Duke Review of MRI Principles (pp. 201–212). Elsevier. https://doi.org/10.1016/b978-1-4557-0084-4.00013-9

Duncan, Scott M., and Timothy J. Amrhein. “Phase Contrast.” In Duke Review of MRI Principles, 201–12. Elsevier, 2012. https://doi.org/10.1016/b978-1-4557-0084-4.00013-9.

Duncan SM, Amrhein TJ. Phase Contrast. In: Duke Review of MRI Principles. Elsevier; 2012. p. 201–12.

Duncan, Scott M., and Timothy J. Amrhein. “Phase Contrast.” Duke Review of MRI Principles, Elsevier, 2012, pp. 201–12. Crossref, doi:10.1016/b978-1-4557-0084-4.00013-9.

Duncan SM, Amrhein TJ. Phase Contrast. Duke Review of MRI Principles. Elsevier; 2012. p. 201–212.