"Phosphodiesterase 5 Inhibitors" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.
Below are MeSH descriptors whose meaning is more general than "Phosphodiesterase 5 Inhibitors".
Below are MeSH descriptors whose meaning is related to "Phosphodiesterase 5 Inhibitors".
Below are MeSH descriptors whose meaning is more specific than "Phosphodiesterase 5 Inhibitors".