StrontiumStrontium IsotopesBarium SulfateBariumStrontium RadioisotopesBarium CompoundsThiophenesEnemaOrganometallic CompoundsCalcium IsotopesBone Density Conservation AgentsCalciumOsteoporosis, PostmenopausalMetals, Alkaline EarthElectron Probe MicroanalysisOsteomalaciaOsteoporotic FracturesBone and BonesFemur NeckAlginatesCations, DivalentCnidariaMucunaCalcium Metabolism DisordersZeolitesGeological PhenomenaDiverticulum, ColonCloacaBalkan PeninsulaOsseointegrationPotassiumMagnesiumOptical ImagingRadioactive WasteSigmoidoscopyMacrocystisIntestinal AbsorptionFuneral RitesOctopodiformesParthenogenesisMembrane PotentialsColonic Diseases