Abstract From 1993 to 1994 105 patients with malignant tumors were treated. We put to use two blind method. The patients were randomized into a treatment group (SOD group) and a comfort group.

• 自1993年7月至1994年4月收治了105例恶性肿瘤病人，采用双盲法，将病人随机分成治疗组（SOD组）和安慰组，两组的放疗方法相同。