What collaborations has Katy Huie Harrison engaged in to redefine maternal health care?

I'm sorry, but the available content doesn't directly address the specific collaborations Katy Huie Harrison has engaged in to redefine maternal health care. However, I can share that Katy is passionate about supporting moms and discussing topics related to postpartum and pregnancy health.

Would you like to know more about her work in these areas or her general approach to supporting moms?