For the search in PubMed, the following terms restricted to major topics were used Restrict to MeSH Major Topic: "primaquine" and "malaria, vivax"; the filter "clinical trial" was used; the articles found were reviewed and the ones which were not CCT, comparing different PQ schemes in sick people, were discarded.
Para la búsqueda en PubMed se usaron estos términos restringidos a tópico mayor Restrict to MeSH Major Topic: "primaquine" y "malaria, vivax"; se aplicó el filtro "clinical trial"; los artículos hallados se revisaron y se descartaron los que no eran ECC que compararan esquemas distintos de PQ en enfermos.