Hemispherx Biopharma Gains Broad Treatment Expansion for Alferon N Injection(R) in Argentina PHILADELPHIA, March 4, 2013 (GLOBE NEWSWIRE) -- Hemispherx Biopharma, Inc. (NYSE MKT:HEB) (the "Company" or "Hemispherx"), announced that ANMAT (Administracion Nacional de Medicamentos, Alimentos y...