Pelvic BonesPorpoisesAnatomy, ComparativeKeratin-1Keratin-3Bone NeoplasmsBone and BonesBone RemodelingPregnancyPainBone DensityBone ResorptionStrontium RadioisotopesBone DiseasesPregnancy ComplicationsPregnancy OutcomeBone MarrowSamariumPregnancy, AnimalBone DevelopmentPain, IntractableBone Marrow CellsDiphosphonatesPain ManagementPregnancy, EctopicRheniumTin RadioisotopesBone RegenerationPain MeasurementChronic PainOsteomalacia