WHO has today revised its initial estimates of the case fatality ratio of SARS.
WHO has today revised its initial estimates of the case fatality ratio of SARS.
WHO今天修订了它关于SARS病死率的最初估计。
WHO has today revised its initial estimates of the case fatality ratio of SARS.
WHO今天修订了它关于SARS病死率的最初估计。