计算机断层扫描 (CT)自20世纪70年代初引进以来,在大多数高收入国家的应用迅速增长。
Through his spate of executive orders, appointments, public statements and official actions, President Trump is trying to overwhelm public opposition to his harmful and dangerous policies. But despite ...
医生,我最近总是头疼,要不要做个CT看看? “孩子咳嗽好几天了,拍个CT吧,放心点。” ...