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A Power Term is used to find an entire class of related concepts, without cluttering the results by searching for the category name itself. For example, the Power Term $Disease will find actual diseases, such as lymphoma or encephalitis but not common terms such as disease, malady, or syndrome, which are too common in the literature to be useful for many searches. You can also write out a plain English phrase such as "what diseases" or just use the $ shortcut. As an illustration, $Diseases caused by arsenic is equivalent to What diseases are caused by arsenic?. Note: Normally it is best to use a Power Term as part of a query, since a query consisting of one Power Term alone does not provide enough context for recognition of ambiguous class member names.

Click on a Power Term Class below to add it to the current query (or type them directly). Multiple Power Term classes can be used within a single query. Power Term members found to be relevant in a search will be listed in the Key Concepts section - to answer questions and for ease of exploration.

All Power Term classes begin with $ and are not case-sensitive. The 618ip安卓下载 classes are grouped hierarchically by categories below, with a brief explanation where needed.

Anatomy

• ┕ $Anatomy
• ┕ $AnimalAnatomy 618ip安卓下载
• ┕ $HumanAnatomy Coming Soon
• ┕ $NonhumanAnatomy 618ip手机免费版 (animal-specific anatomy, such as gizzard)
• ┕ $PlantAnatomy Coming Soon
• ┕ $CellObjects (such as mitochondria)
• ┕ $CellTypes

Biological Processes

• ┕ $BioProcesses

Biomarkers

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• ┕ $GeneticFactors
• ┕ $Metabolites

Chemicals

• ┕ $Chemicals
• ┕ $Metabolites (also a subset of $Biomarkers)
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• ┕ $Hormones (mammalian)
• ┕ $PlantHormones
• ┕ $Ketones
• ┕ $AminoAcids
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• ┕ $BenzylisoquinolineAlkaloids (a full hierarchy including the following)
• ┕ $Opioids
• ┕ $Opiates
• ┕ $SyntheticOpioids
• ┕ $MedicalMaterials ET官网-http代理ip软件网络加速器_免费ip代理服务器_爬虫 ...:2021-7-4 · 代理ip软件首选ET代理,是国内优质http代理动态IP服务商,ET代理服务器拥有26个省千万级动态ip地址,提供换ip软件免费ip代理,网络加速器,socks5代理,爬虫服务器,ip加速器等代理池供应服务。
• ┕ $ROS (reactive oxygen species)
• ┕ $ShortChainFattyAcids
• ┕ $PEG 618ip免费版
•    (Note: most chemical classes, e.g., prostaglandins, do not require a Power Term.)

Diseases

• ┕ $Diseases
• ┕ $Neoplasms
• ┕ $Infections
•    (Note: most disease groups, like dermatopathies, do not require a Power Term.)
• ┕ $HumanDiseases Coming Soon
• ┕ $MetabolicDiseases 618ip免费版
• ┕ $RareDiseases Coming Soon
• ┕ $Injuries Coming Soon
• ┕ $AnimalDiseases Coming Soon 中国618Ip代理，解决日常国内使用过程中ip被封锁限制的问题 ...:2021-10-28 · 618ip代理是国内最全面的动态ip服务商，覆盖全国320多个城市、3000万海量IP供应，还有独享带宽、多平台自动切换 三.怎么换 下载618IP代理app，一键 ...
• ┕ $PlantDiseases Coming Soon (plant-specific diseases, such as fusarium wilt)
• ┕ $SignsSymptoms Coming Soon 代理ip地址 - 好看123:2021-5-14 · 代理ip地址,国外免费代理ip地址,查别人的ip地址合法吗,618ip代理官网,ip地址管理软件,国外ip地址代理,最新移动代理ip,翻墙会被网警监视吗,高精度ip地址定位查询,黑客教你定位ip
• ┕ $Signs Coming Soon (only signs, i.e., changes detectable only by the HCP)
• ┕ $Symptoms Coming Soon (only symptoms, i.e., changes detectable by the patient)
• ┕ $AdverseEffects 蜻蜓软件 - 可靠的企业级http代理/socks5代理IP服务平台:2021-4-24 · 企业级代理服务器池方案提供商，提供海量优质高匿HTTP代理IP，低延迟高可用率稳定专业，产品线涵盖高性能代理服务器软件开发、部署与运维，优质代理IP解决方案，提供http代理定制等业务。

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• ┕ $ApprovedDrugs
• ┕ $Antibiotics
• ┕ $Antifungals
• ┕ $Antibacterials
• ┕ $Antimicrobials
• ┕ $Bacteriostatics
• ┕ $DMARD
• ┕ $Antirheumatics
• ┕ $Antiseptics
• ┕ $CancerVaccines
• ┕ $14alphaDemethylaseInhibitors
• ┕ $5alphaReductaseInhibitors
• ┕ $AdrenergicAgents
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• ┕ $AdrenergicalphaAgonists
• ┕ $Adrenergicalpha1ReceptorAgonists
• ┕ $Adrenergicalpha2ReceptorAgonists
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• ┕ $Adrenergicbeta1ReceptorAgonists
• ┕ $Adrenergicbeta2ReceptorAgonists
• ┕ $Adrenergicbeta3ReceptorAgonists
• ┕ $AdrenergicAntagonists
• ┕ $AdrenergicalphaAntagonists
• ┕ $Adrenergicalpha1ReceptorAntagonists
• ┕ $Adrenergicalpha2ReceptorAntagonists
• ┕ $AdrenergicbetaAntagonists
• ┕ $Adrenergicbeta1ReceptorAntagonists
• ┕ $Adrenergicbeta2ReceptorAntagonists
• ┕ $Adrenergicbeta3ReceptorAntagonists
• ┕ $AdenylylCyclaseInhibitors
• ┕ $AcidSensingIonChannelBlockers
• ┕ $AcetylcholineReleaseInhibitors
• ┕ $AcetaldehydeDehydrogenaseInhibitors
• ┕ $AbortifacientAgents
• ┕ $Engineered_Toxin_Bodies
• ┕ $5LipoxygenaseActivatingProteinInhibitors
• ┕ $Acaricides
• ┕ $Adjuvants
• ┕ $ImmunologicAdjuvants
• ┕ $PharmaceuticAdjuvants
•    (Note: most drug classes, e.g., jakinibs or checkpoint inhibitors, do not require a 618ip安卓下载.)

Genetic Factors

• ┕ $GeneticFactors (genes, proteins, and other genetic regulatory factors such as miRNA)
• ┕ $Proteins (genes plus multimeric proteins)
• ┕ $Genes (genetic loci and their polypeptide products)
• ┕ $MammalianGenes Coming Soon
• ┕ $ClusterOfDifferentiationGenes
•    (Note: most classes of genes, e.g., serpins or BMPs, do not require a 618ip免费版.)
• ┕ $MammalianProteins Coming Soon
• ┕ $MammalianGenes Coming Soon
• ┕ $ProteinComplexes
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• ┕ $IonChannels
• ┕ $NuclearHormoneReceptors
• ┕ $ProteinKinases
• ┕ $ProteinPhosphatases
• ┕ $RNABindingProteins
• ┕ $TranscriptionFactors
• ┕ $MatrixMetalloproteinases
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• ┕ $Enzymes
• ┕ $LigandProteins (proteins that are ligands, not ligands of proteins)
• ┕ $ProteinReceptors (proteins that are receptors, not receptors of proteins)
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• ┕ $MHC
• ┕ $HLA
• ┕ $MHCI/II (both MHCI and MHCII; that is, excluding MHCIII)
• ┕ $MHCI
• ┕ $MHCII
• ┕ $MHCIII
• ┕ $lncRNAs (long non-coding RNAs)
• ┕ $miRNAs 618代理软件官网
• ┕ $miRNA-Families
• ┕ $piRNAs (piwi-interacting RNAs)
• ┕ $Human-piRNAs Coming Soon
• ┕ $Mouse-piRNAs Coming Soon
• ┕ $Rat-piRNAs Coming Soon

Methods

• ┕ $Methods
• ┕ $ChemicalReactions
• ┕ $DiagnosticMethods
• ┕ $TherapeuticMethods
• ┕ $GeneTherapies
• ┕ $Immunotherapies
• ┕ $Antibodies
• ┕ $Vaccines
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• ┕ $Biologics
• ┕ $RNA_Therapeutics
• ┕ $RNAi
• ┕ $AntisenseTherapeutics
• ┕ $OligonucleotideTherapies
• ┕ $siRNA
• ┕ $ddRNAi
• ┕ $mRNA_Therapies
• ┕ $microRNA_Mimics
• ┕ $shRNA
• ┕ $SMMRNA
• ┕ $Diets
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• ┕ $CellLines

Organisms

• ┕ $Organisms
• ┕ $Animals Coming Soon
• ┕ $Plants Coming Soon
• ┕ $Viruses 618ip手机免费版
• ┕ $Fungi Coming Soon
• ┕ $Microbes Coming Soon
• ┕ $AlternativeModels
• ┕ $AnimalModels (typical model systems)
• ┕ $PlantModels (typical model systems)

Everything (for those who want it all)

• ┕ $Factors (covers all categories above; excludes Organizations, Actions, and General Concepts below)

Organizations

• ┕ $Organizations
• ┕ $Companies
• ┕ $Biopharmas
• ┕ $MedicalDeviceCompanies
• ┕ $InformaticsCompanies
• ┕ $DiagnosticsCompanies
• ┕ $VaccineCompanies
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• ┕ $CROs (contract research organizations)
• ┕ $VCs 618代理软件官网
• ┕ $NonProfits (e.g., universities and government agencies)

Actions

• ┕ $Actions (verbs)
• ┕ $Interaction
• ┕ $PositiveActions (all positive actions such as activate and increase)
• ┕ $NegativeActions 在欧洲怎么玩国服英雄联盟不卡 - 英雄联盟之灾变时代 - 234问答:2021-7-14 · 下个 618IP代理 即可解决这个问题 国外玩国内游戏不再卡了。········意大利·········好吧，神豪的世界我不懂，具体情况我也不知道会怎样，试试吧。顺便说下，搜IP加速器，这个加速器可以改变网络传输路径，虽然延迟看上去高，但用之后是不卡的。
• ┕ $EnzymeActions (all enzymatic actions such as phosphorylate and gluconate)

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• ┕ $ResponseStatus (responder, non-responder)
• ┕ $RiskFactors covering:
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• ┕ age group
• ┕ racial-ethnic group
• ┕ gender
• ┕ body weight
• ┕ drinking status
• ┕ nutrition status
• ┕ pregnancy status
• ┕ education level
• ┕ income status
• ┕ sexual orientation
   (Note: individual risk factors do not begin with $, since these will find the name of the category as well;
   try the Also Containing filter for these)
• ┕ $HEOR (health economics and outcomes research, including concepts such as mortality rate and value-based care)
• ┕ $Costs (including concepts such as expenses, economics, and insurance)
• ┕ $Outcomes (including concepts such as performance and value)
• ┕ $Fields_of_Study Coming Soon
• ┕ $Omics
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• ┕ $Continents
• ┕ $Countries
• ┕ $Basis (including concepts such as foundation and determine)
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• ┕ $Fast (broad concept, including acceleration and shorten - as might be related to getting products to market)
• ┕ $CessationRelated Coming Soon (concepts including stop, termination, end, and conclusion)
• ┕ $Protection (immunity and protection)
• ┕ $BusinessFlags 618ip手机免费版 (business indicators)
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• ┕ $GreenFlags Coming Soon (use "green flag" now) (including concepts such as approvals, public offering, and fast track)