Investigation of the status of anxiety and related factors for the preschool children in Harbin
FU Zhi-wei,HAO Jin-lian,CHEN Su-fen,QIAO Su-zhen,GUO Lin,DING Ye,WEN Xin,HAN Cong-hui,ZHANG Hui-ying.
journal1 . 2013, (1): 10 -12 .