Letters to the Editor

Response to “Efficacy and safety of sildenafil for the treatment of severe pulmonary hypertension in patients with hemoglobinopathies: results from a long-term follow up ” Haematologica 2014;99(2):e17–18.

The Pulmonary Center, Boston University School of Medicine, Boston, MA
Department of Hematology/Oncology, Children’s Hospital & Research Center Oakland, Oakland, CA
Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
Vol. 99 No. 2 (2014): February, 2014 https://doi.org/10.3324/haematol.2013.099861