anegative skin test doesn’t rule out TB infection in persons who are immunosuppressed since they are unable to initiate an adequate response to the skin tests 消极皮肤反应测验在是immunosuppressed的人不排除TB传染,因为他们无法创始对皮肤反应测验的一个充分反应[translate] ...
Studies selected had to satisfy five conditions: (1) FEV1must be measured in the same individuals at least twice over a period of at least 2 years; (2) data must be reported separately for those who give up smoking, with randomized studies reporting results only by advice to quit smoking ...