1. Isolation of Viruses Related to E.C.H.O. Virus Type 9 from Outbreaks of Aseptic Meningitis;Boissard G. P. B.;Lancet,1957
2. Enteric Cytopathogenic Human Orphan (ECHO) Viruses
3. An Epidemic Illness Associated with a Recently Recognised Enteric Virus (E.C.H.O. Virus Type 4) II. Recognition and Identification of the Etiologic Agent;Chin T. D. Y.;Am. J. Hyg.,1957
4. Cytopathogenic Effect of Coxsackie Viruses in Human Epithelial Cell Lines;Crowell R. L.;Fed. Proc.,1954
5. Association of Echo Virus Type 6 with Aseptic Meningitis.