### Chinese: 还有一部分品牌，为了推广自己的产品，不择手段，跟医院的医生挂钩，由他们协助产品的推广，从一听里面抽成30元到80元不等的利润。
### English: There are also some brands that, in order to promote their own products, use no means to link up with doctors in hospitals. They assist in the promotion of their products, and draw profits ranging from 30 yuan to 80 yuan from the first hearing.
### Errors: There is a major error of incorrect translation does not accurately represent the correct translation at "use no means". There is a major error of incorrect translation includes information not present in the correct translation at "the first hearing". There is a major error of incorrect translation is missing content from the correct translation at "in hospitals". There is a minor error of incorrect translation has stylistic problems at "link up with".

### Improved English: There are also some brands that, in order to promote their products, cooperate with doctors in the hospital by all means, and ask them to assist in the promotion of products, drawing profits ranging from 30 yuan to 80 yuan from one can.