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HIV Infections
HIV-1
HIV
Anti-HIV Agents
Reverse Transcriptase Inhibitors
HIV Reverse Transcriptase
HIV Protease Inhibitors
HIV Protease
RNA, Viral
Organophosphonates
Adenine
Viral Drug Resistance
Mutation
Drug Resistance, Multiple, Viral
Genotype
Amino Acid Substitution
Spain
Viral Load
Retrospective Studies
CD4 Lymphocyte Count
Co-Publications
29
28
13
7
4
3
2
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