Who are Katy Huie Harrison’s notable collaborators in the maternal health advocacy space?

I'm sorry, but I don't have specific information on Katy Huie Harrison's notable collaborators in the maternal health advocacy space. Katy is passionate about supporting moms and discussing topics related to postpartum and pregnancy health. However, the details about her collaborations aren't available in the content I have.

Is there anything else you would like to know about Katy or her work? I'm here to help!