Massachusetts General Hospital, Boston, Massachusetts, USA

Correspondence to Kassem Safa, MD, FASN, FAST, Medical Director of Living Donation, Kidney Transplant Program, Transplant Center and Division of Nephrology, Massachusetts General Hospital, Harvard Medical School, 165 Cambridge Street, Suite 301, Boston, MA 02128, USA. Tel: +1 617 643 5257; e-mail: [email protected]; Camille N. Kotton, MD, FIDSA, FAST, Clinical Director, Transplant and Immunocompromised Host Infectious Diseases, Infectious Diseases Division, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Cox 5, Boston, MA 02114, USA. Tel: +1 617 724 0082; fax: +1 617 726 7653; e-mail: [email protected]