There is a reproducible, undeniable association between fires and fire engines, but that doesn’t mean that the latter cause the former. If you or a loved one has taken (or is taking) human growth hormone under a physician’s supervision, you shouldn’t lose sleep over it.
火灾和消防车之间存在无可置疑的重要联系，而且这种联系还是可以重复验证的，但也不能据此认为是消防车引起了火灾。因此假如你或你爱的人在医生指导下服用过（或正在服用）增高激素，无须害怕，大可安枕无忧。