Patients with a histologic diagnosis confirmed from a pretreatment biopsy at the Laboratory of Pathology, NCI of one of the following entities: Diffuse small Lymphocytic Lymphoma; Follicular, Small Cleaved cell Lymphoma; Follicular, Mixed Small Cleaved and Large Cell Lymphoma; Follicular Large Cell Lymphoma; Diffuse, Intermediately Differentiated Lymphocytic Lymphoma; Diffuse, Small Cleaved Cell Lymphoma; Diffuse, Mixed Small and Large Cell Lymphoma; Diffuse, Large Cell Lymphoma; Large Cell Immunoblastic Lymphoma; Small Noncleaved Cell Lymphoma.