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Schacher SA, Fuccillo DA, Gitnick GL, Sever JL, Huebner RJ. Oral administration of attenuated rubella virus vaccine (HPV-77). A negative report. J Pediatr. 1968 Feb;72(2):255–7. doi: 10.1016/s0022-3476(68)80318-x. PMID: 5635807. |