Start here;
https://www.google.co.uk/search?source=hp&ei=FhwVXZ7YGMHXkwWz3IfACA&q=peer+reviewed+study+on+drug+response&oq=peer+reviewed+study+on+drig+respons&gs_l=psy-ab.1.0.33i22i10i29i30l3.2363.15713..20459...2.0..0.107.2540.35j2......0....1..gws-wiz.....0..0j0i131j0i10j0i22i30j33i13i21j33i160j33i10i21j33i10i160.AJYBHml4J9w
I'm sorry, Andy, but that links looks like it's on steroids.
@Oliver Schick started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Start here;
https://www.google.co.uk/search?source=hp&ei=FhwVXZ7YGMHXkwWz3IfACA&q=peer+reviewed+study+on+drug+response&oq=peer+reviewed+study+on+drig+respons&gs_l=psy-ab.1.0.33i22i10i29i30l3.2363.15713..20459...2.0..0.107.2540.35j2......0....1..gws-wiz.....0..0j0i131j0i10j0i22i30j33i13i21j33i160j33i10i21j33i10i160.AJYBHml4J9w