Comment on

• The associations of fibroblast growth factor 23 and uncarboxylated matrix Gla protein with mortality in coronary artery disease: the Heart and Soul Study.

  Parker BD, Schurgers LJ, Brandenburg VM, Christenson RH, Vermeer C, Ketteler M, Shlipak MG, Whooley MA, Ix JH. Parker BD, et al. Ann Intern Med. 2010 May 18;152(10):640-8. doi: 10.7326/0003-4819-152-10-201005180-00004. Ann Intern Med. 2010. PMID: 20479029 Free PMC article.