Answer:
world health organization
Explanation:
it means the world health services
I think the answer is Pharynx
By it self because the significant can’t associated
5 down: thymus
12 down: spleen
12 across: suppressor T
11 across: macrophage
7 down: autoimmune
8 down: bone marrow
5 down: lymph nodes
If i did miss something, comment below ^_^