From September 2012 to February 2013, two investigators independently tracked abstracts and articles in 10 databases: Science Direct, MEDLINE, OVID, LILACS, Wiley InterScience, MD Consult, Springer Link, Embase, Web of Science, and Ebsco, using the combination of terms from Medical Subject Headings MeSH described below:
De septiembre de 2012 a febrero de 2013, dos investigadores de manera independiente rastrearon resúmenes y artículos en 10 bases de datos: Science Direct, MEDLINE, OVID, LILACS, Wiley InterScience, MD Consult, Springer Link, Embase, Web of Science, Ebsco, usando la combinación de términos del Medical Subject Headings MeSH descritos a continuación: