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Descriptor English:   Biological Assay 
Descriptor Spanish:   Bioensayo 
Descriptor Portuguese:   Bioensaio 
Synonyms English:   Assay, Biologic
Assay, Biological
Assays, Biologic
Assays, Biological
Bioassay
Bioassays
Biologic Assay
Biologic Assays
Biological Assays  
Tree Number:   E05.091
SP4.016.172.918
SP4.102.107.242.403
Definition English:   A method of measuring the effects of a biologically active substance using an intermediate in vivo or in vitro tissue or cell model under controlled conditions. It includes virulence studies in animal fetuses in utero, mouse convulsion bioassay of insulin, quantitation of tumor-initiator systems in mouse skin, calculation of potentiating effects of a hormonal factor in an isolated strip of contracting stomach muscle, etc. 
Indexing Annotation English:   assays using living-matter intermediate; check text: not all "bioassays" are MeSH term BIOLOGICAL ASSAY; Manual 22.27; DF: BIOL ASSAY
Allowable Qualifiers English:  
AE adverse effects CL classification
EC economics ES ethics
HI history IS instrumentation
MT methods MO mortality
NU nursing PX psychology
ST standards SN statistics & numerical data
TD trends VE veterinary
Record Number:   1706 
Unique Identifier:   D001681 

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