Science CoRDS Symposium SDPB Radio | By Steve Zwemke Published February 15, 2013 at 2:01 PM CST Facebook Twitter LinkedIn Email Listen • 11:59 Liz Donohue, Director for Coordination of Rare Diseases at Sanford (CoRDS), discussed the 3rd annual rare disease symposium. The symposium is scheduled for March 1, at Sanford Center in Sioux Falls.