title: Acute lymphoblastic leukaemia in children: Classification and prognosis.
abstract: Immunological (surface-marker) tests have been used to define four subgroups of acute lymphoblastic leukaemia (A.L.L.) in childhood: T-A.L.L., B-A.L.L., common-A.L.L., and null-A.L.L. A study of 94 children shows that the common-A.L.L. subgroup achieves a much longer duration of remission than T-A.L.L.; our findings also confirm the association of some clinical features with T-cell A.L.L. Within the common-A.L.L. subgroup, initial white-cell count correlates with prognosis.
mesh_terms: D000293:Adolescent; D001402:B-Lymphocytes; D002462:Cell Membrane / Q000276:immunology; D002648:Child; D006801:Humans; D007945:Leukemia, Lymphoid / Q000097:blood / Q000145:classification* / Q000401:mortality; D007958:Leukocyte Count; D011379:Prognosis; D012075:Remission, Spontaneous; D013601:T-Lymphocytes; D013997:Time Factors