No abstract available
MeSH terms
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Adult
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Female
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HIV Infections / complications*
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Humans
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Hypertension, Pulmonary / drug therapy*
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Hypertension, Pulmonary / etiology
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Male
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Phosphodiesterase Inhibitors / therapeutic use*
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Piperazines / therapeutic use*
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Purines
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Sildenafil Citrate
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Sulfones
Substances
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Phosphodiesterase Inhibitors
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Piperazines
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Purines
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Sulfones
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Sildenafil Citrate