“…Of the remaining 7 of the 19 patients, whether they had either EBV or HIV infection was not clear ( 2 , 3 , 16 - 18 ). Six of the 19 cases survived for more than a year ( 3 , 12 , 15 ); 1 was HIV positive ( 3 ), 4 were HIV negative ( 3 , 12 , 15 ), and the HIV status was unknown in 1 case ( 3 ). Of those 6 patients, 2 had chemotherapy and surgery ( 3 , 15 ) and 4 had only chemotherapy ( 3 , 12 ).…”