[1] NINCDS,DCDND,EPILEPSY BRANCH,FED BLDG,ROOM 114,BETHESDA,MD 20892
[2] SUN YAT SEN UNIV MED SCI GUANGZHOU,INST NEUROL,GUANGZHOU,PEOPLES R CHINA
[3] NINCDS,IRP,NEUROEPIDEMIOL BRANCH,BETHESDA,MD 20892
[4] BEIJING NEUROSURG INST,BEIJING,PEOPLES R CHINA
[5] SHANGHAI MED UNIV,INST NEUROL,SHANGHAI,PEOPLES R CHINA
[6] GUI YIANG MED COLL,DEPT NEUROL,GUIZHOU,PEOPLES R CHINA