doi: 10.1080/19476337.2016.1266033 22
With proper planning and support, you can focus on what matters most your health and well-being
Eleven of the nineteen studies included in this systematic review had a randomized, double-blind placebo-controlled study design [9,17,18,21,22,23,29,30,31,32,33], one study had a single-center open-label comparative study design [24], one study had a prospective design [26], one study had a prospective single-center parallel-group design [28], one study had a prospective randomized study design [27], one study had a prospective randomized placebo-controlled study design [25], one study had an interventional casecontrol study design [35], one study was a prospective analysis [36], and one study had a matched group design [34]
Don't overthink this part too much, but first is generally best
Cardiomyocyte electrophysiology and its modulation: current views and future prospects