MARIETTA, Ga.--(BUSINESS WIRE)-- #ASC--Vascular Surgical Associates, PC (VSA) is celebrating its 40th anniversary this month, marking four decades of vascular care in North Georgia since Dr. Oliver "Fred" King founded the practice in July 1986. Dr. King was joined later that year by Dr. David Hafner, and in 1990 by Dr. Steven Oweida — together, the three were instrumental to the practice's strategy and growth. What began as a physician's commitment to his community has grown into a ten-surgeon,