I do think you wont find studies one way or another, mostly because i dont think any have been done.

Indeed, there has been little research to determine what the long-term effects of steroid use might be. Most of what's known comes from animal studies and case studies. But the kind of human trials that might provide a more definitive answer are unlikely anytime soon, researchers say.

"It'd be unethical to do clinical trials, in which we'd be asking people: ÔCan we put you on a dose of drugs that will probably be harmful with no necessary benefit - basically be our guinea pigs?' " said Dr. Peter Ambrose, clinical professor at the UCSF School of Pharmacy.