Mark GuagliardoMark Guagliardo, PhD, is an analyst with the Veterans Health Administration, U.S. Department of Veterans Affairs and has used SAS for 35 years on a wide variety of data management and analysis tasks. He has been the principal investigator or co-invesigator for dozens of federally funded grants and contracts, primarily in the area of health services research. His peer reviewed publications and presentations have been in the areas of health services, public health, pediatrics, geography, and anthropology. He is a certified GIS (geographic information systems) professional, and specializes in studies of access to health care services locations. Read More Read Less