1. 1. Badesch DB, Champion HC, Sanchez MA, et al. Diagnosis and assessment of pulmonary arterial hypertension. J Am Coll Cardiol 54: S55-S56, 2009.
2. 2. Dingli D, Utz JP, Krowka MJ, Oberg AL, Tefferi A. Unexplained pulmonary hypertension in chronic myeloproliferative disorders. Chest 120: 801-808, 2001.
3. 3. Dispenzieri A, Kyle RA, Lacy MQ, et al. POEMS syndrome: definitions and long-term outcome. Blood 101: 2496-2506, 2003.
4. 4. Allan JS, Kennedy CC, Aksamit TR, Dispenzieri A. Pulmonary manifestations in patients with POEMS syndrome: a retrospective review of 137 patients. Chest 133: 969-974, 2008.
5. 5. Li J, Tian Z, Zheng HY, et al. Pulmonary hypertension in POEMS syndrome. Haematologica doi: 10. 3324/haematol. 2012. 073031 (in press).