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Association for Computing Machinery, Inc. (ACM) Scientific academy / society / association New York, NY Association of Cancer Online Resources (ACOR) Museum, Collection, Library, Archive New York City Association of Public Health Laboratories (APHL) Association Bethesda, MD ASTM International Industry / private company West Conshohocken, PA AstraZeneca (United States) Industry / private company Wilmington ATA Engineering Industry / private company San Diego Athinoula A. Martinos Center for Biomedical Imaging Research facility Boston Atlanta Gastroenterology Associates others Atlanta Atlanta Gastroenterology Associates Hospital Atlanta, GA Atlanta Heart Specialists, LLC Industry / private company Atlanta