If you dont have to write it in the context of pure steroid use as for sports or self image then you can probably hit on the points of
1. Assiting people with hiv or other similar degenerative virus's gain size/improve
red cell blood count (I read in one of the steroid profiles from anabolics 2006 thats one of the effects, not sure about specific steroid)
2. The use of androgel or testosterone replacement therapy for men going through low testosterone.