结论云南省存在广州管圆线虫病自然疫源地。

Conclusion The natural foci of Angiostrongyliasis are present in Yunnan.

youdao

结论云南省存在广州管圆线虫病自然疫源地。

Conclusion The natural foci of Angiostrongyliasis are present in Yunnan.

youdao