1·TB can also lead to a granulomatous pericarditis that may calcify and produce a "constrictive" pericarditis.
TB还可以导致肉芽肿性心包炎,进而可能钙化和产生缩窄性心包炎。
2·An aortic valve need not be bicuspid to calcify.
主动脉瓣并非是两个瓣叶的才钙化。