HIV reverse transcriptase+Protease gene mutations tested for:Prid:Pt:Isolate:Nom
hiv reverse transcriptase+protease gene mutations tested for:prid:pt:isolate:nom
Human immunodeficiency virus reverse transcriptase+Protease gene mutations tested for:Presence or Identity:To identify measures at a point in time:Isolate:Nominal
human immunodeficiency virus reverse transcriptase+protease gene mutations tested for:presence or identity:to identify measures at a point in time:isolate:nominal