F Passamonti, L Vanelli, L Malabarba, E Rumi, E Pungolino, L Malcovati, C Pascutto, E Morra, M Lazzarino and M Cazzola (2003) “Clinical utility of the absolute number of circulating CD34-positive cells in patients with chronic myeloproliferative disorders”, Haematologica. Pavia, Italy, 88(10), pp. 1123-1129. doi: 10.3324/%x.