不过，即使升高，其绝对危险性也极小，且远远低于百日咳或麻疹后患脑病的危险性。
"However, 'they conclude," if such an increased risk exists, the absolute risk is extremely small and it is much lower after vaccination than after pertussis or measles.
不过，即使升高，其绝对危险性也极小，且远远低于百日咳或麻疹后患脑病的危险性。
"However, 'they conclude," if such an increased risk exists, the absolute risk is extremely small and it is much lower after vaccination than after pertussis or measles.
应用推荐