LOS ANGELES, May 5 (Xinhua) -- At least three people were confirmed dead and nine others remain missing after a suspected smuggling boat capsized and washed ashore near San Diego, California, on ...

LOS ANGELES, May 5 (Xinhua) -- At least three people were confirmed dead and nine others remain unaccounted for after a boat washed ashore near San Diego, California, on Monday morning, authorities ...

美国加州圣地亚哥（San Diego ）对开海面有船只翻覆，造成至少3人死亡、4人受伤，另有9人仍然失踪。美国海岸防卫队正进行搜救。 至少3人死亡 9人失踪 ...

为解决新生儿动脉导管未闭（PDA）支架置入技术挑战大、易并发症等问题，研究人员开展了扭锁导丝技术用于 PDA 支架置入的研究。结果显示该技术成功率高、并发症少。这为 PDA 支架置入提供了新方法，具有重要意义。