Conclusion The late efficacy of mitral annuloplasty using prosthetic ring is satisfactory.结论对于有瓣环扩大的二尖瓣成形术,应用人工瓣环,近期和远期临床效果均满意.Percutaneous annuloplasty has the potential to serve as a therapeutic adjunct to standard med...
Silicosis is occupational disease for certain, is coal silicon ill?矽肺肯定是职业病, 煤矽病?Attention must be paid on the synergic effect of smoking and silicosis in cancer complication.吸烟和矽肺同时存在时,有必要注意协同作用.Paper describes the thre...
He painted a sign advertising the pups.他画了个（卖）小狗的广告牌。All the pups were having a rough - and - tumble in the garden.小狗都正在花园里又叫又闹.Two thousand grey seal pups are born there every autumn.那里每年秋天有2,000头灰色小海豹出生。The pups played...