But 48 killers had some kind of formal diagnosis, often schizophrenia.
"She saw a lot of doctors, but no formal diagnosis," I said.
Diabulimia is not currently recognized as a formal diagnosis by the medical or psychiatric communities.
There is no formal diagnosis of video game addiction in current medical or psychological literature.
The formal diagnosis of endometriosis can be made only after a laparoscopic exam.
The formal diagnosis came after her first birthday.
Her son, now 5, received a formal diagnosis last year.
Instead, the field relies on the careful assessment of symptoms, like changes in mood and behavior, to make a formal diagnosis.
A formal diagnosis is not required to access support.
About half had received formal diagnosis of mental illness, often schizophrenia.