Shaffer, D. R., Emerson, S. U., Murphy, P. C., Govindarajan, S., & Lemon, S. M. (1995). A hepatitis A virus deletion mutant which lacks the first pyrimidine-rich tract of the 5' nontranslated RNA remains virulent in primates after direct intrahepatic nucleic acid transfection.

Shaffer, D R., S U. Emerson, P C. Murphy, S. Govindarajan, und S M. Lemon. A Hepatitis A Virus Deletion Mutant Which Lacks the First Pyrimidine-rich Tract of the 5' Nontranslated RNA Remains Virulent in Primates After Direct Intrahepatic Nucleic Acid Transfection. 1995.

Shaffer, D R., et al. A Hepatitis A Virus Deletion Mutant Which Lacks the First Pyrimidine-rich Tract of the 5' Nontranslated RNA Remains Virulent in Primates After Direct Intrahepatic Nucleic Acid Transfection. 1995.