This image released by ABC shows "Good Morning America" hosts, from left, George Stephanopoulos, Robin Roberts, Lara Spencer and ABC News President Ben Sherwood at a bone marrow registry drive at ABC ... more 
This image released by ABC shows "Good Morning America" hosts, from left, George Stephanopoulos, Robin Roberts, Lara Spencer and ABC News President Ben Sherwood at a bone marrow registry drive at ABC News headquarters in New York on Tuesday, June 26, 2012. The national bone marrow donation registry Be The Match reported Tuesday that the rate of new registrants has more than doubled since the "Good Morning America" anchor Roberts announced on June 11 that she has MDS, a blood and bone marrow disease. (AP Photo/ABC, Lou Rocco) less 
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Associated Press | Photo By ABC, Lou Rocco
Tue, Jun 26, 2012 2:51 PM EDT