PMMM: Primary Myelofibrosis with Myeloid Metaplasia

What does PMMM mean? The above is one of PMMM meanings. It may have other definitions. Please refer to the end of this passage.

PMMM: Primary Myelofibrosis with Myeloid Metaplasia

Definition in English: Primary Myelofibrosis with Myeloid Metaplasia