Describe the valvular anatomy of the heart and list etiologies for valvularheartdisease.
描述心瓣膜的解剖功能，并举出有关瓣膜性心脏病的病因。
2
Objective: To investigate the relationship between senile degenerative valvularheartdisease (SDVHD) and heart failure.
目的：研究退行性心脏瓣膜病(SDVHD)与心力衰竭(简称心衰)的关系。
3
There are alternative therapies available for Parkinson's disease, including three other dopamine agonists that have not been associated with valvularheartdisease.