Re: "Epidemic poliomyelitis in the Gambia following the control of poliomyelitis as an endemic disease. II. Clinical efficacy of trivalent polio vaccine".
作者信息
Arya S C
出版信息
Am J Epidemiol. 1994 Feb 15;139(4):449-51. doi: 10.1093/oxfordjournals.aje.a117026.