一、简要案情：伤者陈某，男，２８岁，农民，于１９９５年１０月１５日晚９时许被他人用扁担打头皮裂伤，伤后送本地卫生院治疗四天，于第五天伤口拆线后回家，当晚觉头甚疼，第二天经当地卫生院介绍到市人民医院神经内科门诊诊治，诊断为①颅脑挫伤；②脑萎缩；１０月２３日? First, a brief case: the injured Chen, male, 28 years old, farmer, on October 15, 1995 9 o’clock in the evening by others with a flathead scalp laceration, injury to the local hospital for four days after treatment, in the fifth The day after the wound was stitched home, the night head feel very painful, the next day by the local health clinic introduced to the Municipal People’s Hospital neurology outpatient diagnosis and treatment, diagnosis of ① brain contusion; ② brain atrophy; October 23?