Ruston, LA-based Pafford EMS has just added a fixed-wing plane to its fleet.  In a news release, Program Director Keith Carter says that make's Pafford's Clinical Air Division the only north Louisiana EMS provider with a dedicated air ambulance.  The Cessna 414 is capable of long distance medical transfers to just about anywhere in the country.  It joins Pafford's existing helicopter and ground unit -- all of which are staffed by certified critical care flight crews.