pacemakers造句
Yetpacemakersarenotwithoutproblems.Thevagusnerveshaveaninhibitoryactiononatrialpacemakers.Guidant,famousmakerofpacemakers,USESthetermemployee-owners.Beforethefirstimplantabledevice,pacemakersweresobig...
Yetpacemakersarenotwithoutproblems.Thevagusnerveshaveaninhibitoryactiononatrialpacemakers.Guidant,famousmakerofpacemakers,USESthetermemployee-owners.Beforethefirstimplantabledevice,pacemakersweresobig...