Bone Marrow NeoplasmsImmunomagnetic SeparationNeoplastic Cells, CirculatingBone MarrowNeoplasm MicrometastasisSensitivity and SpecificityCell SeparationMicroscopyBreast NeoplasmsStaining and LabelingTumor Markers, BiologicalPrognosisNeoplasm MetastasisKeratinsLymphatic MetastasisAlpha ParticlesSentinel Lymph Node BiopsyMagneticsPolymerase Chain ReactionLymph NodesAxillaBismuthCryptosporidium parvumNeoplasm StagingAntibodies, MonoclonalEscherichia coli O157ImmunohistochemistryOocystsLeukapheresisAntigens, NeoplasmRadioisotopesAntigens, CD34Reverse Transcriptase Polymerase Chain ReactionMelanomaMicrospheresFecesLymph Node ExcisionCell Line, TumorEvaluation Studies as TopicImmunologic TechniquesChymopapainLung NeoplasmsBacteriological TechniquesBone Marrow Purging