But basically this means were sort of working with observational data
Monteiro C, Miarka L, Perea-Garca M, Priego N, Garca-Gmez P, lvaro-Espinosa L, et al
(PubMed) Fritz H, Flower G, Weeks L, et al
West Virginias pilot program is a microcosm of the dilemma posed by new obesity drugs that are at once effective and shockingly expensive
There are two explanations for the increased relative abundance of oral bacteria in feces: one is that oral bacteria invade and expand within the gut ecosystem (the Expansion hypothesis), the other is that the relative increase in oral bacteria and signify the depletion of other gut bacteria (the Marker hypothesis) 33