Sorry to say, "n" is far too small in this study. n=31 spread over three arms of the study. Really? To make it useful for anything except pointing to possible

Sorry to say, "n" is far too small in this study. n=31 spread over three arms of the study. Really? To make it useful for anything except pointing to possible future studies, n must be larger. Meantime, give those researchers a kewpie doll!