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. 2014 Dec 20;21(1):102. doi: 10.1186/s12929-014-0102-2

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© Hol et al.; licensee BioMed Central. 2014

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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The effect of anesthesia in patients undergoing vulvectomy and major abdominal surgery on perioperative levels of plasma tryptophan. Values are the mean and SEM. There was a significant within subject effect (P < 0.001). There was a significant decrease prior to induction and 30 minutes prior to the end of operation ( bracket P < 0.001). A significant increase occurred 30 minutes prior to the end of operation and 24 hours post operative (bracket P < 0.001).