方法：笔者1963年至1999年潜心研究心脏听诊，对8例病理性心肺杂音细心观察，结合文献。

Methods From 1963 to 1999, Author use method of auscultation and were clinical observed, 8 cases of cardiopulmonary murmur and refer to the literary of historical data.

youdao

方法：笔者1963年至1999年潜心研究心脏听诊，对8例病理性心肺杂音细心观察，结合文献。

Methods From 1963 to 1999, Author use method of auscultation and were clinical observed, 8 cases of cardiopulmonary murmur and refer to the literary of historical data.

youdao