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An investigation of the U.S. role in international biomedical publication is reported, based on counts of articles, notes and reviews in 975 biomedical journals covered by the Science Citation Index in 1973. U.S. scientists authored 42% of these biomedical papers, the U.K. 10%, West Germany and France 7% and 6%, and the U.S.S.R. 4%, a sharp change from earlier in this century when Germany and France had much more prominent roles. Overall, 94% of the papers are from OECD and Eastern European countries; only 4% are from underdeveloped regions. U.S. and U.K. papers are far more heavily cited than are papers from other countries; U.S.S.R. papers are particularly under-cited. Biomedical publication rates are shown to be highly correlated (r = 0.9) with both national wealth (GNP) and national affluence (GNP/capita). National publication rates also correlate with Nobel Prize recipients. - Frame, J. D., and F. Narin. The international distribution of biomedical publications.
The individual searching the literature of ophthalmology should not find this a time-consuming or frustrating activity. The basic guides to the literature are described, and methods for obtaining information are outlined. The value of orienting oneself to each guide before using it is stressed. Special attention in this communication is given to locating current material; however, guides for searching the older literature are presented also. Since several computerized searching services can be helpful, their programs are briefly described; addresses are given for current prices and additional information. Some of the online services may be accessible in your local or regional medical library. When you become conversant with these guides and methods you will be able to find more information than before, and you will be able to find it more quickly.
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The Massachusetts General Hospital Laboratory of Computer Science created a library of computer-aided-instruction (CAI) programs in 1972. An experimental network of Cai programs, made possible by National Library of Medicine (NLM) support, was set up in July 1972, operating over commercial communication lines. Programs developed by Massachusetts General, Ohio State University and the University of Illinois Medical College were made available to users with terminals in about 36 cities through a local telephone number. During the first two years of the program over 80 institutions participated. A trial of the Massachusetts General programs, in conjunction with the Continuing Education Committee of the American College of Emergency Physicians, was conducted in five representative community hospitals. The hospitals put up the cost of the terminals and the telephone charges. Results of the study showed that 12 of the 40 (30%) emergency physicians in the target population took 10 or more programs. They gave the programs a favorable overall rating--1.6 on a scale of 1 (strongly positive) to 5 (strongly negative).
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This paper attempts to evaluate the effectiveness of a keyword or descriptor in the title, from the viewpoint of document selection and information retrieval for scientists engaged in contraception research. A total of 2152 document titles recorded in the Index Medicus during 1973-75 was examined. Another set of 567 contraception titles published in the Index Medicus during 1963-65 was also studied to determine if there were any changes in the information content of the titles over a 10-year period. Employing the Montgomery-Swanson method, it was found that 92.2% of the documents from the later period and 88.0% of those from the earlier period had at least one "contraception term" in their titles. The data obtained in this study exceed those of published reports. A brief review of some of the previous studies dealing with the retrieval capabilities of titles in various branches of medical and life sciences is presented. It is concluded that the title search method is a very effective means of retrieving pertinent documents in the field of contraceptive technology. A trend of improvement in the information content of the scientific titles is also noted.
Has the randomized clinical trial (RCT), generally accepted as the method of choice for evaluation of most treatments, obtained a footing in gastroenterology? Among 35,228 citations on gastroenterologic therapy indexed in MEDLARS 1964-1974 306 (0.9 per cent) were RCT's. During the decade their frequency rose significantly (P less than 0.05) from 0.3 per cent in 1964 to 1.7 per cent in 1973. The "typical" RCT was a double-blind two-group comparison of a new and an established drug on the symptoms of peptic ulcer; 50 patients were followed for six weeks, and the number of dropouts was unknown. The new drug was found to be more effective. It is postulated that the RCT's in gastroenterology are quantitatively and qualitatively insufficient and that co-ordinated planning of RCT's and uninhibited publication of statistically proved negative results may help to ensure that the patient with gastrointestinal disease receives the best available treatment.
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Development and implementation of the Biocommunications Network in the Memphis region have relied on sharing of resources among hospital libraries. Implied in this system is the recognition that all health care professionals have a right of access to health sciences libraries.
Guidelines for improving the effectiveness and efficiency of conducting a search of scientific literature are presented. Initial leads can be gained by contacting a local expert or consulting a textbook. An impression of advances being made in a particular field can be gained efficiently by scanning weekly issues of Current Contents, containing the tables of contents of most scientific journals. Recent review articles on most topics can usually be found listed in the Index Medicus. With at least one significant reference dealing with a specific topic of interest, the Science Citation Index may be used to identify articles published during a particular indexing period which cited the article as a reference. Practical guidelines are also presented for establishing a simple but comprehensive personal system for filing and retrieving on demand reprints, pamphlets, and notes.
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The need for a central source of information regarding the availability, suitability, and quality of educational materials has led to the development of AVLINE. AVLINE is a computer information service available through the MEDLARS system of the National Library of Medicine. The Association of American Medical Colleges is gathering information from faculty members concerning useful materials and is bringing together content specialists, instructional designers, and technical specialists to review these materials. Information on materials that are recommended is provided to the National Library of Medicine to be cataloged, indexed, and abstracted for ultimate listing in AVLINE. Twenty-eight percent of the material has not been recommended; the many reasons for low ratings are categorized under content quality, instructional design, and technical quality.