• This is the most common cause of an unusual,or abnormal, heartbeat in older adults.

    VOA: special.2009.09.22

  • Malaria causes a million deaths per year, and schistosomiasis, which is a parasitic disease, is unfortunately a common cause of death in the world.

    疟疾每年造成一百万死亡,而血吸虫病,这是一种寄生虫病,不幸的是,它是世界上很常见的死因

    耶鲁公开课 - 生物医学工程探索课程节选

  • This is the most common cause of abnormal heartbeat in older adults.

    VOA: special.2009.08.12

  • The most common cause is pollen from flowering plants and trees.

    VOA: special.2010.12.21

  • The most common cause of COPD is long-term smoking or years of exposure to second-hand smoke.

    VOA: standard.2010.06.21

  • The goal is to search for common genes that may cause the disease.

    VOA: special.2009.04.07

  • Down syndrome is the most common genetic cause of mental retardation.

    VOA: special.2009.09.09

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