Introduction.

MLA

Castañeda, Xóchitl, et al. “Introduction.” Salud Publica de Mexico, vol. 55 Suppl 4, 2013, pp. S449–50. EBSCOhost, widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=cmedm&AN=25153183&authtype=sso&custid=ns315887.

APA

Castañeda, X., Rangel, G., Fabila, L. H., & Ferreira-Pinto, J. B. (2013). Introduction. Salud Publica de Mexico, 55 Suppl 4, S449–S450.

Chicago

Castañeda, Xóchitl, Gudelia Rangel, Luis Humberto Fabila, and João B Ferreira-Pinto. 2013. “Introduction.” Salud Publica de Mexico 55 Suppl 4: S449–50. http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=cmedm&AN=25153183&authtype=sso&custid=ns315887.