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. 2019 Mar 1;6:19. doi: 10.3389/fnut.2019.00019

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Copyright © 2019 Forbes and Bell.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Natural killer cell activity (NKCA) at rest, 5 and 60 min after exercise before and after training for the whey supplement (WS) and placebo (PLA) groups. Lytic units, effector cells × 10³ to lyse 30% of target cells. Values are means ± SD.