Sagoe, Dominic and McVeigh, Jim and Bjørnebekk, Astrid and Essilfie, Marie-Stella and Schou Andreassen, Cecilie and Pallesen, Ståle (2015) Polypharmacy among anabolic-androgenic steroid users: a descriptive metasynthesis. Substance Abuse Treatment, Prevention, and Policy, 10, (12), doi: 10.1186/s13011-015-0006-5.