ArchivesCensusesLibrariesAnalog-Digital ConversionHistory, 19th CenturyHistory, 20th CenturyRadiology Information SystemsTissue FixationBiological Specimen BanksBody Mass IndexPeriodicals as TopicTissue BanksParaffin EmbeddingNational Library of Medicine (U.S.)FormaldehydeInternetAccess to InformationPublishingRetrospective StudiesLibraries, MedicalDatabases, FactualDatabase Management SystemsUnited StatesResidence CharacteristicsComputer Communication NetworksInformation Storage and RetrievalUser-Computer InterfaceTobacco IndustryDatabases, Nucleic AcidSmall-Area AnalysisSeverity of Illness IndexInfant, NewbornSoftwareReproducibility of ResultsItalySocioeconomic FactorsBiomedical ResearchDatabases, GeneticTime FactorsPoverty Areas