George is developing an XSLT style sheet to display data from research surveys. The structure of the surveys.xml file is shown in the accompanying figure. He comes to you for assistance in preparing the final file.
-George knows that the position() function returns the position of the node as it is displayed within the result document, not necessarily the position of the node in the source document. Which element do you suggest George use to retrieve the position values of the nodes as they appeared in the source document?
Definitions:
Carvedilol
A medication used to treat high blood pressure and heart failure, functioning as a beta-blocker that also dilates blood vessels.
Heart Failure
A condition in which the heart is unable to pump sufficiently to maintain blood flow to meet the body's needs.
PO
A medical abbreviation for "per os," Latin for "by mouth," indicating that medication or food should be taken orally.
Nifedipine Extended Release
A form of medication designed to release the active ingredient, nifedipine, slowly over time to treat conditions such as high blood pressure and angina.
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