“…Twelve such patients had been treated with radiotherapy of the spleen (6,8,10,20), two patients with splenectomy (5, lo), and seven patients with low-dose chemotherapy (5,6,8,9,22) before entering remission. Six patients achieved their remission more than one year afier the cessation of therapy (5,6,9,18,20); another developed without treatment a transition of the leukaemia into a non-leukaemic solid lymphoma (9), and one entered remission without any therapy (2). All these cases have been referred to as "spontaneous" remissions (2, 3, 5, 6, 8-10, 18, 20).…”