Selector system design for the Iowa drug information service microfilm file.

The Iowa Drug Information Service microfilm system has been evaluated fairly well. Tourville et. al. compared four drug information services, International Pharmaceutical Abstracts, Iowa Drug Information Service, deHaen Drugs in Research, and deHaen Drup in Use, and indicated that the Iowa Information SeMce appeared to have the highest overall relative utility for obtaining clinical information'. Madden d. al. compared nine drug information retrieval services of huge d e as well as of smal l scale, and stated that of smaller commercially available manual systems, the Iowa Drug Information Service was found to be the most comprehensive2. One of the advantage of the Iowa Drug Information Service microfilm'system over others is that it includes original articles. It is said that there are over 500 subscribers in the United States, Puerto Rico and 25 other countries. The effective usage of the system is believed to contribute to a successful drug information activity. This system has been utilized in the school of Pharmacy, KobeGakulin University as a tool for D I simulation activity for pharmacy students, and it is found that the manual