Otrock Zaher K, Al-Kutoubi Aghiad, Kattar Mireille M, Zaatari Ghazi, Soweid Assaad
Department of Internal Medicine, American University of Beirut Medical Centre, Beirut, Lebanon.
Lancet Oncol. 2006 May;7(5):439-41. doi: 10.1016/S1470-2045(06)70697-0.