A beta version of the database is currently available by mail on zip disks, or on the internet via file transfer protocol. Distribution via an internet web site is anticipated.
Each copy of the database is accompanied by a complete set of instructions describing data requirements and the use of the system.
-- Access notes taken from the PSMDB database instruction book, with modifications by Sara Breslow Data Collection Methods: Many researchers contributed to the data in the PSMDB. The program also allows for data entry and data editing. Gaps, Omissions, and Biases: Data collated in the system consist of observations replicated over time and of sufficient quality to permit the meaningful analysis of variability and trends.
--Taken from PSMDB database instruction book