This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
what is the side effect of vagal nerve stimulation 
Select and explain. 
A. agranulocytosis, B. seizures, C. myocarditis, D. voice change
D: voice change
Answer: D: voice change 
Explanation: Vagus nerve stimulation * Electrical stimulation of left vagus nerve * Stimulation of raphe nucleus and locus cereleus * Release of norepinephrine and serotonin * Side effects * Voice alteration Ref. kaplon and sadock, synopsis of pychiatry, 11 th edition, 1065