Study on chromosome abnormal karyotype of mental retardation children Qiqihar area
WANG Xiu-hua,FENG Hua-jie,ZHANG Ming-long,LV Ying,ZHENG Li-hong
journal1 . 2017, (8): 852 -853 .  DOI: 10.11852/zgetbjzz2017-25-08-30