The meta analysis by John et al. included 87 studies published since 1950 under regimens of PQ anti reccurences and they were based on what was found in Medline and Cochrane Central Register of Controlled Trials.
El metanálisis de John et al. incluyó 87 estudios publicados desde 1950 sobre regímenes de PQ antirrecurrencias y se basó en lo hallado en Medline y Cochrane Central Register of Controlled Trials.