P He

[Effects of high-level-manganese sewage irrigation on children's neurobehavior].

P He, D H Liu, G Q Zhang, 1994, Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine].

[Effects of manganese on learning abilities in school children].

G. Zhang, P He, G Zhang, 1995, Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine].