Of patients over 65 years old who survived coronarybypass surgery—a procedure widely prescribed for people with heart disease—only75 percent benefited from the surgery.
我没看懂。bypass surgery 是说绕开了手术,却生存下来 ?? 还有75% benefited from the surgery ? 自己也感觉不合理,但这个 surived coronary bypass surgery 怎么理解呢? 我哪儿错了呢?