1. Medical devices containing materials derived from animal sources (except for in vitro diagnostic devices): guidance for industry and Food and Drug Administration staff Publication: Silver Spring, MD : Center for Devices and Radiological Health, March 15, 2019 Subject(s): Biological Products -- standardsDevice Approval -- standardsEquipment and Supplies -- standardsDisease Transmission, Infectious -- prevention & controlEncephalopathy, Bovine Spongiform -- transmissionSterilization -- standardsAnimalsHumansUnited StatesUnited States. Department of Health and Human Services.United States. Food and Drug Administration.