Home / Standards / GB 17020-1997 GB 17020-1997 Abolished Decide and delimit of Keshan disease endemic area 克山病病区划定和类型划分 Standard Type GB ICS 11.020 CCS C61 Status 废止 Issue Date 1997-10-06 Implementation 1998-10-01 Responsible Dept 国家卫生健康委 Drafting Unit N/A