SPOKANE, Wash.--(BUSINESS WIRE)--Signature Genomic Laboratories has appointed two new laboratory directors, Drs. Marilyn Slovak, Ph.D., and J. Britt Ravnan, Ph.D. Signature, which performs diagnostic genetic testing of chromosome abnormalities in individuals with unexplained mental retardation and/or birth defects, anticipates the appointments will help the company manage its steadily increasing volume of cases.
