Garimella PS, Ix JH, Katz R, Chonchol MB, Kestenbaum BR, de Boer IH, Siscovick DS, Shastri S, Hiramoto JS, Shlipak MG, et al. Fibroblast growth factor 23, the ankle-brachial index, and incident peripheral artery disease in the Cardiovascular Health Study. Atherosclerosis. 2014 ;233(1):91-6.