| First Indicator Undefined # - Undefined |
Second Indicator Undefined # - Undefined |
| Subfield Codes |
|
| $a - General explanatory index term (NR) $b - General explanatory index term-succeeding level (R) $f - Schedule identification (R) |
$6 - Linkage (NR) $8 - Field link and sequence number (R) |
General explanatory term from the index to the classification scheme that is identified in field 084 (Classification Scheme and Edition). Field 154 is appropriate only in an index term record (008/06, Kind of record, code c) that is created because the index term cannot be accommodated in a 70X-75X Index Term field in a schedule or table record (008/06, code a or b) that contains a classification number in field 153 (Classification Number). This occurs when the index term is not associated with one classification number or span. Field 753 (Index Term-Uncontrolled) is always used in a record containing field 154 to direct the user to different locations within the classification scheme for classifying the topic.
| 008/06 | c [index term record] |
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| 084 | 0#$anlm$c5th ed., rev. [National Library of Medicine Classification] |
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| 154 | ##$aResearch | ||||||||
| 753 | ##$i(Form number 20 or 20.5 in any NLM schedule where applicable) | ||||||||
| 753 | ##$iOther fields outside the NLM area, in appropriate LC number | ||||||||
| 008/06 | c [index term record] |
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| 084 | 0#$anlm$c5th ed., rev. [National Library of Medicine Classification] |
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| 154 | ##$aFollow-up studies | ||||||||
| 753 | ##$i(Form number 20 in any NLM schedule where applicable) | ||||||||
| 753 | ##$iIn a particular area, with the subject of the original study, e.g. Heart Diseases,$eWG210 | ||||||||
| 008/06 | c [index term record] |
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| 084 | 0#$addc$bSistema de Clasificación Decimal$c1980$espa [Sistema de Clasificación Decimal] |
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| 154 | ##$aEl | ||||||||
| 753 | ##$iv.a. la palabra que sigue al artículo en los nombres
geográficos que comienzan con el artículo "el" [Translation of 753: see also the word that follows the article in geographic names that begin with the article "el"] |
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| 008/06 | c [index term record] |
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| 084 | 0#$alcc [Library of Congress Classification] |
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| 154 | ##$aAdministration$bOrganization$fKJ-KKZ | ||||||||
| 753 | ##$uOrganization and administration | ||||||||
| 008/06 | c [index term record] |
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| 084 | 0#$alcc [Library of Congress Classification] |
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| 154 | ##$aCivil wars$fE-F | ||||||||
| 753 | ##$uMilitary history under individual countries | ||||||||
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