1. Multicenter evaluation of quantification methods for plasma human immunodeficiency virus type 1 RNA;Lin,1994
2. Biological variation and quality control of plasma human immunodeficiency virus type 1 RNA quantitation by reverse transcriptase polymerase chain reaction;Winters,1993
3. Stability of human immunodeficiency virus RNA in blood specimens as measured by a commercial PCR-based assay;Sebire,1998
4. HIV viral load markers in clinical practice;Saag,1996
5. Regulatory constraints for the transport of samples and compliance with the World Organisation for Animal Health (OIE) standards for biosecurity and biocontainment;Pearson,2007