鼻咽癌

shǒu shù fāng fǎ de gǎi jìn shì zhèng què yǒu xiào de jiǎo zhèng bí yān ái de fāng fǎ

手术方法的改进是正确有效地矫正鼻咽癌的方法。

The improvement of the operative method is reasonable and effective in correcting pectus carinatum.