South China Journal of Preventive Medicine ›› 2022, Vol. 48 ›› Issue (9): 1107-1110.doi: 10.12183/j.scjpm.2022.1107

• Field Research • Previous Articles     Next Articles

  

  • Received:2021-04-14 Online:2022-09-20 Published:2022-11-08

CLC Number: 

  • R197.3