IC Choi, PC Fung, AY Leung, AK Lie and R Liang (2001) “Plasma nitric oxide is associated with the occurrence of moderate to severe acute graft-versus-host disease in haemopoietic stem cell transplant recipients”, Haematologica. Pavia, Italy, 86(9), pp. 972-976. Available at: https://haematologica.org/article/view/2144 (Accessed: 15September2026).