Dr.Amin says these findings are provocative and deserve further study, especially given the number of potential ways in which cigarette smoking could have a negative effect on knee joint cartilage.

• 译者按：首先需要说一声抱歉，认领了之后不能及时完成，新闻也就变成了旧闻，不过各位战友都有自己的事，这个也难以强求，尽量快吧。