Frozen SectionsParaffin EmbeddingTissue FixationFormaldehydeTissue BanksFreezingFixativesTissue PreservationParaffinImmunoenzyme TechniquesMicrotomyImmunohistochemistrySpecimen HandlingCryopreservationMicrodissectionAntibodies, MonoclonalStaining and LabelingAntigens, NeoplasmFluorescent Antibody TechniquePalatine TonsilTumor Markers, BiologicalGene Expression ProfilingReverse Transcriptase Polymerase Chain ReactionPolymerase Chain ReactionDNA, NeoplasmHistocytochemistryOligonucleotide Array Sequence AnalysisReproducibility of ResultsLasersBreast NeoplasmsSensitivity and SpecificityLymph NodesRNABiopsyRNA, MessengerLymphomaAntigens, SurfaceIn Situ Hybridization, FluorescenceCarcinomaAdenocarcinomaNeoplasm ProteinsEpitopesPrognosisBlotting, WesternSwineBiological MarkersGene Expression Regulation, NeoplasticBrainBase SequenceTime FactorsMolecular Sequence Data