NIEHS Repository of Stored Biological Samples for Future Use

Study Description: We aim to build a repository utilizing both prospectively and retrospectively collected human biological samples, like blood and urine, to develop and test the following: specific laboratory assays, to develop and maintain freezer and specimen handling quality control, to have blinded quality control specimens for laboratory testing, and to assess exposure variability over time. Objectives: Primary Objective: To build a repository for approved investigators to access stored biological samples for the following: developing and testing specific laboratory assays, to maintain freezer and specimen handling quality control, to have blinded quality control specimens for testing labs, and to assess exposure variability over time.