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Part of the challenge, according to Hern, is that many employers are struggling to justify investments whose financial returns may take years to materialize
This is an Open Access article under the terms of the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
67 GaultVAO'HarteFPMHarriottPMooneyMHGreenBDFlattPRet al
Many clients appreciate that results can often be felt within hours to days, with effects lasting for several weeks
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