Convert a disfluent question to a proper question. A disfluent question is a question that has some interruptions in it while framing. A proper question is the correct form of the question without any disfluency.

What is a regulatory factor I meant to say are two types of phagocytes that travel through the body to find invading pathogens?
What are two types of phagocytes that travel through the body to find invading pathogens?