Searching Fields in OVID Databases
References in OVID databases Ageline, CINAHL, HAPI, HealthSTAR, Journals@OVID and MEDLINE and are divided into sections called fields. These sections may be searched by adding the listed two-letter code, offset by a period on each side of the code, to the end of any search statement. NOTE: Not all codes can be used in all databases. 
Code Name Example Database(s)
.AA. All Authors smith h.aa. CINAHL
.AB. Abstract penicillin.ab.

All Databases

.AC. Acronym qls.ac. HAPI
.AF. All Searchable Fields caregiver.af. All Databases
.AN. Accession Number 1996040804.an.  Ageline, CINAHL, HAPI, Journals@OVID
.AS. Abbreviated Source nurs matters.as. CINAHL
.AT. Analyst p test.at. HAPI
.AU. Author  smith t.au. All Databases
.AV. Availability veterans administration.av. Ageline, HealthSTAR
.CA. Corporate Author american diabetes association.ca.  CINAHL
.CG. Contract/Grant Numbers 11cat111.cg. Ageline
.CP. Country of Publication united states.cp. HealthSTAR, MEDLINE
.CT. Caption Text radiology image.ct. Journals@OVID
.DD. Document Delivery j11700000.dd. CINAHL
.DT. Document Type newspaper.dt. Journals@OVID
.DV. Division advisory.dv. CINAHL
.EM. Entry Month 9608.em.
(August 1996)
CINAHL, MEDLINE
.EP. Electronic Date of Publication 20011012.ep. MEDLINE
.FS. Floating Subheading ae.fs. (Adverse Effects). CINAHL, HealthSTAR, MEDLINE
.FS. Funding Sources national institutes of health.fs. Ageline
.GI. Grant Information nih.gi.  CINAHL
.GS. Gene Symbol bgr4.gs. HealthSTAR, MEDLINE
.GW. Gene Symbol Word down.gr. HealthSTAR, MEDLINE
.HW. Subject Heading Word encephalitis.hw. CINAHL, MEDLINE
.IB. ISBN
(International Standard Book Number)
0-8273-5684-6.ib. CINAHL, HealthSTAR
.ID. Identifiers benchmarking.id. Ageline, CINAHL, MEDLINE
.IM. Image File Names 002731.pdf.im. CINAHL
.IN. Institution
(1989)
indiana university.in. CINAHL, HealthSTAR, Journals@OVID, MEDLINE
.IP. Issue/Part 6.ip. CINAHL, HealthSTAR, Journals@OVID, MEDLINE
.IS. ISSN
(International Standard Serial Number) 
0027-8424.is. CINAHL, HealthSTAR, Journals@OVID, MEDLINE
.IT. Instrumentation wais-r.it.  CINAHL
.JC. NLM Journal Code ifb.jc. Journals@OVID, MEDLINE
.JN. Journal Name circulation.jn.  CINAHL, HealthSTAR, MEDLINE
.JW. Journal Word surgery.jw. CINAHL, Journals@OVID, MEDLINE
.KW. Author Keywords smith.kw. Journals@OVID
.LE. Legal Cases abortion.ie. CINAHL
.LG. Language english.lg. CINAHL, HealthSTAR, MEDLINE
.MI.
Medline Identifier
 20112315.mi.
MEDLINE
.MS. Molecular Sequence gdb-x61034.ms. MEDLINE
.MT. Meeting Data indiana.mt. Ageline
.NO. Grant Number 12882.no. HealthSTAR, MEDLINE
.NQ. Number of Questions 14.nq. HAPI
.NP. Named Persons smith t.np. CINAHL
.NT. Notes special issue.nt. Ageline, CINAHL, HealthSTAR
.OH. Outline Headings radiology.oh. Journals@OVID
.OS. Original Study AIDS.os. CINAHL
.OT. Original Title communidad.ot. MEDLINE
.PB. Publisher williams.pb. MEDLINE (1978-1983)
.PG. Page Number or Pagination 245.pg.
(beginning page only) 
CINAHL, HealthSTAR, Journals@OVID, MEDLINE
.PM. PubMed Identifier 8853052.pm. CINAHL
.PN. Personal Name as Subject osler w.pn. HealthSTAR, MEDLINE
.PT. Publication Type review.pt. Ageline, HealthSTAR, Journals@OVID, MEDLINE
.RF.

Cited References or References

geriatrics.rf.  CINAHL, HAPI, Journals@OVID
.RN. CAS Registry Number 38821-49-7.rn. HealthSTAR, MEDLINE
.RV. Reviews smith t.rv. CINAHL
.RW. CAS Registry Word carbidopa.rn. MEDLINE
.RY. Reliability p test n.ry. HAPI
.SB. Journal Subset n.sb.
(nursing journals)
HealthSTAR, Journals@OVID, MEDLINE
.SH. Medical Subject Heading (MeSH) or CINAHL Subject Headings smoking.sh. CINAHL, MEDLINE
.SM. Space Flight Mission mercury project.sm. MEDLINE
.SO. Source pediatrics.so. Ageline, HAPI
.SP. Special Interest Category sports medicine.sp. CINAHL
.ST.
Series Title
health care.st.
Ageline
.TC. Table of Contents emergency.tc.  CINAHL
.TI. Title measles.ti. All Databases
.TW.
Text Word
jaundice.tw.
(titles, abstracts, identifiers, instructionation fields)
CINAHL, HealthSTAR , MEDLINE
.TW. Text Word jaundice.tw. (titles/abstracts)  MEDLINE, Journals@OVID
.TX. Full Text albinism.tx. CINAHL, Journals@OVID
.UI. Unique Identifier or Unique Indicator 96374857.ui. HealthSTAR, MEDLINE
.UP. Update Code or Update Date 9612.up.  Ageline, MEDLINE
.VA. Validity Need Example HAPI
.VO. Volume 157.vo. CINAHL, HealthSTAR, Journals@OVID, MEDLINE
.WB.
Website
medsearch.wb.
CINAHL
.XM. Exploded MeSH Heading exocrine glands.xm. MEDLINE
.XS. Exploded Subheading th.xs
(all therapy subheadings) 
HealthSTAR, MEDLINE
.YR. Year of Publication 2000.yr. All Databases

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