TY - RPRT TI - Human immunodeficiency virus type 1 reverse transcriptase and protease mutation search engine for queries. AU - R W Shafer AU - D R Jung AU - B J Betts PY - 2000 DO - 10.1038/81407 UR - https://pubmed.ncbi.nlm.nih.gov/11062545/ ID - 11062545 ER -