
Rethink “treatment-resistant depression” by adopting difficult-to-treat depression, verifying adequate trials, and stratifying drivers like trauma and inflammation to improve outcomes.
What is the most abundant and ubiquitous neurotransmitter in the mammalian central nervous system?
What is the most abundant and ubiquitous neurotransmitter in the mammalian central nervous system?
A. Acetylcholine
B. Dopamine
C. Glutamate
D. Serotonin
E. Norepinephrine


