Adapted from the work of Keith Salzman, MD and Gary Clark, MD. . Study Design. Joseph P. Yetter, COL, MCColin M. Greene, LTC, MCMAMC Faculty Development Fellowship. Hypothetical Research Question. Your mission:Reduce the incidence of heart diseaseYour belief:Garlic consumption is the key to good healthYour hypothesisGarlic intake decreases the risk of CAD.