It is updated weekly and contains the most recent 8 weeks' worth of data, and on average contains between 50,000 and 62,000 records.
Most records consist of bibliographic citations containing abstracts and author-supplied keywords.
For The Dialog Corporation's Redistribution and Archive Policy, enter HELP ERA online. The following terms and conditions also apply. Because of rapid advances in the medical sciences, we recommend that independent verification of diagnoses and drug dosages should be made. However, no specific scientific data about its role in causing allergic diseases are available. Objective - To study the role of pecan tree pollen in the development of allergy.