CatharticsCitric AcidSenna ExtractBisacodylPicolinesLaxativesMagnesiumOrganometallic CompoundsColonography, Computed TomographicCitratesColonoscopyMagnesium SulfateMagnesium DeficiencyCitrate (si)-SynthaseSingle-Blind MethodMagnesium CompoundsMagnesium OxidePotassium CitrateProspective StudiesMagnesium HydroxideOxo-Acid-LyasesCalcium CitrateMagnesium ChlorideClomipheneCalciumMalatesTricarboxylic AcidsHydrogen-Ion ConcentrationPhosphorusOxaloacetatesKineticsGallium RadioisotopesMineralsFerric CompoundsMagnesium SilicatesIsocitrate DehydrogenasePhosphatesPotassiumAconitate HydrataseCations, DivalentIsocitratesEdetic Acid