Bone drug linked to cancer risk

Bone drug linked to cancer risk http://bbc.in/csk3Bk

they said that biphosphonates used to strenghtening the bone are responsible for raising up possibility to get oesphagus cancer. but that study restricted the group taking medecine more than 5y and also the elder people(65y<) .

what I think is that It has more possible to make people get disease they found and the young people also has a chance to get that disease.

I'll look on it.