NLM Technical Bulletin September-October 1997 No. 298 File Aliases Coverage MEDLINE MED 1995-1998 Year-End Processing MED93 M93, BACK93, B93 1993-1994 MED90 M90, BACK90, B90 1990-1992 New MEDLINE® Backfile and MED85 M85, BACK85, B85 1985-1989 MED80 M80, BACK80, B80 1980-1984 MEDLINE Backfile MED75 M75, BACK75, B75 1975-1979 Configuration - 1998 MED66 M66, BACK66, B66 1966-1974 During 1997 Year-End Processing, all citations published in 1994 or earlier will Reminder to PubMed searchers: be pulled from MEDLINE and placed in the In this issue PubMed searches MEDLINE, appropriate Backfiles. MEDLINE Backfiles PREMEDLINE™ and all Backfiles at and their years of coverage will change Articles: one time. again in 1998 with the introduction of a new 1 Year-End Processing Backfile called MED93. The primary dates of 5 Year-End Processing of Stored Searches, Automatic SDIs and Saved coverage for MEDLINE and its Backfiles for Searches 1998 will be as shown in the box to the right: 7 CHEMLINE® and TOXLIT® Retire 7 Rebuilding of CATLINE®/AVLINE® and Other Changes Expansion of Dates in MEDLINE Files for Year 2000 8 MeSH Coming Attractions During 1997 Year-End Processing, the following date fields (see Figure 1) in MEDLINE files 11 MeSH on the Web on ELHILL will be expanded by two-digits to accommodate the new format required for 13 Gold Standard Search the Year 2000. See Figure 1 below. Continued on page 4 Appendixes: 17A 1998 Weekly Update Schedule for MEDLINE 19B 1998 Weekly Update Schedule for Data 1997 Search 1998 Search Search 1998 Display AIDSLINE Element Format Format (PRINT) 21C 1998 Weekly Update Schedule for HealthSTAR YR 97 (YR) 1997 (YR) 97 (YR) N/A; YR does not 23D 1998 Monthly Update Schedule for Year of or display as a NLM Databases Publication 1997 (YR) separate 25E 1998 NLM Pricing Algorithm Chart data element 27F MEDLARS Pricing Schedule Regular Features: EM 9712 (EM) 199712 (EM) 9712 (EM) EM - 199712 2 Technical Notes Entry Month or Abridged Indexed Medicus (AIM) Ceases 199712 (EM) Publication ■ NLM Automatic SDI Service Moratorium ■ Codes and Billing Practices DA 971201 (DA) 19971201 (DA) 971201 (DA) DA - 19971201 Update ■ Database Update Information Date of Entry or for 1998 ■ MeSH Corrections ■ ■ 19971201 (DA) OLDMEDLINE Now Available for Lease SI Field Changes for GENBANK Records ■ New TOXNET DISPLAY Command ■ LR 961024 (LR) 19961024 (LR) 961024 (LR) LR - 19961024 Alternatives to the Technical Bulletin on the Last Revision or Web ■ Revised Basics of Searching Date 19961024 (LR) MEDLINE on ELHILL Available ■ Revised HSDB Reference Guide Available ■ Bibliography of Bioethics 1997 Available CU 97 (CU) 1997 (CU) 97 (CU) CU - 1997 from Kennedy Institute of Ethics ■ Cancer Class or vs. Cancer Cytopathology ■ Revised NLM Update Date 1997 (CU) Pricing Information 31 Instructions for Retrieving NLM Publications in Electronic Format Figure 1 - List of date fields to be expanded in 1998. 31 NLM Internet Directory September-October 1997 NLM Technical Bulletin 1 exploring ways that users may obtain the MeSH Corrections same data in a more timely and more Please note the following corrections to Technical Notes individualized way, and at less expense to MeSH 1998 Tree Numbers. The Tree both the user and to NLM. Recognizing that Numbers are correct in the ELHILL files and transitioning to a new current awareness in the data from the NLM Web pages but service may take time, NLM will continue Abridged Indexed Medicus the incorrect numbers appear in the printed the current Automatic SDI service for at least MeSH publications for 1998. (AIM) Ceases Publication several months for users who are already The National Library of Medicine’s monthly receiving the service. See the article on MH - Cognition Disorders publication Abridged Index Medicus (AIM) pages 5-6 of this issue for instructions on Correct - F3.087.250 will cease following the Volume 28, Number how to make any necessary revisions to Incorrect - F3.126.185 12, (December 1997) issue. existing automatic SDI strategies to reflect changes in the 1998 MeSH vocabulary. The Abridged Index Medicus was initiated MH - Homosexuality in 1970 to “afford rapid access to selected Correct - F1.145.792.975.500 biomedical journal literature of immediate Incorrect - F1.145.792.320 interest to the practicing physician” when Codes and Billing Practices online services were not readily available. Update MH - Perceptual Disorders A subset of citations from 119 English Practice Time Credit Eliminated Correct - C10.597.643 language clinical journals indexed for Index The $20 MEDLARS practice time credit for Correct - C23.888.592.646 Medicus was selected for AIM. The new User ID codes was eliminated effective Incorrect - C10.597.244.600 publication was of value to the community October 1, 1997. Few new users were Incorrect - C23.888.592.224.600 over the years; at one point, over two registering for billed access and NLM wants thousand libraries, clinics, colleges, and to encourage use of the free Web-based The notice of this correction may also be individuals subscribed to the monthly issues search systems (PubMed and Internet downloaded from the MeSH Web page at: and the annual cumulations. During the past Grateful Med). The discontinued practice http://www.nlm.nih.gov/mesh/ 20 years, however, an increasing number time credit, which expired one year from whatsnew.html of subscribers have been accessing the data the date a User ID code was issued, was from electronic resources, and subscriptions formerly available to new (non-student) to the printed product have declined. codeholders performing billed searches. OLDMEDLINE Now Available for Lease Online searchers will still be able to search Student Codes Discontinued The OLDMEDLINE database contains using A (SB) to limit MEDLINE retrieval to Effective October 1, 1997, the Library 307,366 citations that were published in the the journals in the AIM subset. Even though stopped issuing new individual or 1964 and 1965 Cumulated Index Medicus the printed AIM is being discontinued, the institutional student codes. These codes (CIM). AIM subset list will continue to exist online were billed at a student-rate (discounted) in ELHILL. To search the AIM subset in for use of ELHILL or TOXNET files, or PDQ. This file became available to searchers of the Internet Grateful Med type: /a (sb) in a The Library is encouraging both students NLM MEDLARS system on December 18, search box. PubMed, a non-ELHILL search and teachers to access NLM databases at 1996, and is expected to grow as citations system, does not currently contain a Subset our Web site. NLM will contact institutions from earlier volumes of CIM are converted (SB) field or its equivalent; however, this with student codes to see if the students to machine-readable format and added. The enhancement will be added to PubMed in can be switched to using the free Web- database is now available on tape for lease the near future. based search systems, PubMed and IGM. from the National Library of Medicine for All existing individual student codes will an annual fee of $1,000. Please contact Jane Since there are many demands for Federal continue to be charged at student rates for L. Rosov at [email protected] or 888­ dollars, the National Library of Medicine a two year period. FINDNLM in regard to leasing the file. must make some difficult choices concerning the support of existing products Old Unused Codes Deactivated In 1964, NLM began testing the versus the improvement and development Effective October 1, 1997, billed MEDLARS computerized MEDLARS system as a of new products. NLM Associate Director User ID codes issued before October 1994 mechanism for producing Index Medicus, for Library Operations, Lois Ann Colaianni, and not used for the past three years, have and in 1966 began making this information realizes that some find the AIM particularly been deactivated. Deactivated codes will available online in the MEDLINE database. useful; and she will be happy to explore not permit a user to login and search. However, the Library did not keep indexed alternatives for this information with such citations for the 1964 and 1965 publications individuals. She may be contacted via e­ in electronic form, and until the creation of mail, [email protected]. Database Update Information OLDMEDLINE this information was not for 1998 available in any NLM database. NLM was The NLM database update schedules and assisted in its effort to provide online access NLM Automatic SDI Service update frequency chart for 1998 are to these citations by the Deutsches Institut Moratorium published as Appendixes A, B, C, and D. fur Medizinische Dokumentation und Effective immediately, no additional users You may wish to photocopy these pages Information (DIMDI), the International will be added to the NLM Automatic SDI and post them near your computer for MEDLARS Center in Germany, which had program, and existing users are advised to reference during the 1998 year. tapes of the original data from the 1964 and add no new searches. The Library is 1965 CIM, and supplied them to NLM. 2 NLM Technical Bulletin September-October 1997 Data from the DIMDI tapes have not been First search for the corporation’s facilities in right time for this transition to a Web-based maintained for over 30 years, and were the Facility Name (FNM) field by entering Technical Bulletin. The Library encourages loaded “as is” into OLDMEDLINE. NLM AEROCROP (FNM). This might retrieve 56 you to make this transition with us. conducted limited review and maintenance records with only 5 unique chemicals in of data prior to creating OLDMEDLINE, but those 56 records. Then perform a SORT on A recent survey of network member libraries the records have not undergone the the chemical name field by giving the indicated that 73% of the responding stringent data entry and validation command SORT NAME.