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PCR Methods and Applications|February 1, 1993
An improved method for the detection of hepatitis C virus RNA in plasma utilizing heminested primers and internal control RNAP P Ulrich, J M Romeo, L J Daniel, et al.Hepatology (Baltimore, Md.)|February 1, 1993
Analysis of hepatitis C virus RNA prevalence and surrogate markers of infection among seropositive voluntary blood donorsJ M Romeo, P P Ulrich, M P Busch, et al.The Journal of Clinical Investigation|November 1, 1990
Detection, semiquantitation, and genetic variation in hepatitis C virus sequences amplified from the plasma of blood donors with elevated alanine aminotransferaseP P Ulrich, J M Romeo, P K Lane, et al.Transfusion|August 1, 1994
Rare detection of hepatitis B and hepatitis C virus genomes by polymerase chain reaction in seronegative donors with elevated alanine aminotransferaseT M Sankary, G Yang, J M Romeo, et al.Hepatology (Baltimore, Md.)|February 1, 1990
Molecular characterization of a new variant of hepatitis B virus in a persistently infected homosexual manR A Bhat, P P Ulrich, G N VyasBlood|February 15, 1993
Detection of hepatitis B virus in plasma using flow cytometric analyses of polymerase chain reaction-amplified DNA incorporating digoxigenin-11-dUTPG Yang, P P Ulrich, R A Aiyer, et al.The Journal of Infectious Diseases|July 1, 1989
Enzymatic amplification of hepatitis B virus DNA in serum compared with infectivity testing in chimpanzeesP P Ulrich, R A Bhat, B Seto, et al.Journal of Medical Virology|October 1, 1990
A precore-defective mutant of hepatitis B virus associated with e antigen-negative chronic liver diseaseP P Ulrich, R A Bhat, I Kelly, et al.Journal of Medical Virology|May 1, 1988
Assessment of human immunodeficiency virus expression in cocultures of peripheral blood mononuclear cells from healthy seropositive subjectsP P Ulrich, M P Busch, T el-Beik, et al.Indian Journal of Medical Sciences|April 1, 1993
Molecular approaches to the detection of agents in persistent viral infectionsG N VyasPageof 11