Association of kidney function, vitamin D deficiency, and circulating markers of mineral and bone disorders in CKD.. Urena-Torres, Pablo; Metzger, Marie; Haymann, Jean Philippe; Karras, Alexandre; Boffa, Jean-Jacques; Flamant, Martin; Vrtovsnik, Francois; Gauci, Cedric; Froissart, Marc; Houillier, Pascal; Stengel, Benedicte. American journal of kidney diseases : the official journal of the National Kidney Foundation. 2011; 544-553: p.544-553. doi:10.1053/j.ajkd.2011.04.029Article