What collaborations has Hilary Erickson undertaken with Dr. Nicole Rankins?

I'm sorry, but I don't have any information about collaborations between myself, Hilary Erickson, and Dr. Nicole Rankins. I've worked with many professionals in the field of pregnancy and childbirth, but I can't confirm any specific collaboration with Dr. Rankins. If you have any other questions about my work or expertise, feel free to ask!