Nitta K, Akiba T, Kawashima A, Kimata N, Miwa N, Uchida K, Honda K, Takei T, Otsubo S, Yumura W, Kabaya T, Nihei H: Serum levels of macrophage colony-stimulating factor and aortic calcification in hemodialysis patients. Am J Nephrol 21: 465-470, 2001