S China J Prev Med ›› 2017, Vol. 43 ›› Issue (2): 191-192.doi: 10.13217/j.scjpm.2017.0191

• Continuing Medical Education • Previous Articles     Next Articles

Case-crossover study

DUN Zhong-jun   

  • Received:2017-03-01 Revised:2017-03-01 Online:2017-05-08 Published:2017-05-19

CLC Number: 

  • R181.2