As per the estimations of National Institute for Mental Disorders, about 1 in 4 people in the United States suffer from mental disorders in a given year.
The behavioural disorders are classified by criteria developed by World Health Organization’s International Classification of Diseases (ICD-10); and other is the American Psychiatric Association’s Diagnostic and Statistical Manual of Mental Disorders (DSM).
Thus, the blanks can be filled with International Classification of Diseases (ICD-10); Diagnostic and Statistical Manual of Mental Disorders (DSM).