What is "subphases"

Usage examples of "subphases".

But, for the record, let me state quite clearly that although for various reasons I will probably never put quite the same emphasis on F-0 that Grof does, I nevertheless endorse entirely his general conclusions about the nature, the subphases, the formations and malformations, the pathologies, and the possible types of influence of this crucial fulcrum.

Western history playing out these three major subphases of the perinatal birth trauma.