Methods:By the method of Ag-NOR,the NOR and acrocentric association were studied in 30 male drug addicts and 30 normal men.

• 方法 :采用Ag -NOR技术 ,分别对 30名男性吸毒患者和 30名正常男性的NOR及近端着丝粒染色体联合进行了初步研究。