Programming the statistical procedures from SAS

Greenhouse-Geisser Corrections applied to a Mixed-ANOVA

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Greenhouse-Geisser Corrections applied to a Mixed-ANOVA

I want to tell SAS to run Greenhouse-Geisser corrections for violations of sphericity on my electrophysiological data. However, the data set is technically run as a Mixed-ANOVA because we have both between and within subjects factors. Because it is physiological in nature, we MUST run GG corrections on the data set. I can only find procedures for running this sort of procedure on a GLM within-subjects model. Can anyone help me with how I would do this in mixed-ANOVA?

I am a Brand New SAS user and really don't know much about it, so please try to keep it simple! Thanks!
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