Kelly Tappenden, PhD, RD, Editor-in-Chief of the Journal of Parenteral and Enteral Nutrition (JPEN) interviews David Frankenfield, MS, RD, one of the authors of a tutorial on energy requirements for patients receiving nutrition support therapies. This tutorial, published in the September 2011 issue of JPEN, is the first of a series of articles aimed at providing fundamental knowledge to readers who need a refresher or seek to increase their knowledge in new areas.

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