@inbook{1118133033, author={Patricia Clark and Rodolfo Rivas Ruiz}, editor={Moreno Altamirano, Laura}, title={Revisiones sistemáticas y metaanálisis en Medicina}, booktitle={Epidemiología clínica, 3e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2015}, url={accessmedicina.mhmedical.com/content.aspx?aid=1118133033} }