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Essence; the material or necessary component of something.

A matter of substance, as distinguished from a matter of form, with respect to pleadings, affidavits, indictments, and other legal instruments, entails the essential sufficiency, validity, or merits of the instrument, as opposed to its method or style.

West's Encyclopedia of American Law, edition 2. Copyright 2008 The Gale Group, Inc. All rights reserved.

SUBSTANCE, evidence. That which is essential; it is used in opposition to form.
     2. It is a general rule, that on any issue it is sufficient to prove the substance of the issue. For example, in a case where the defendant pleaded payment of the principal sum and all interest due, and it appeared in evidence that a gross sum was paid, not amounting to the full interest, but accepted by the plaintiff as full payment, the proof was held to be sufficient. 2 Str. 690; 1 Phil. Ev. 161.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
Psychiatric comorbidity in patients with substance use disorders attending an addiction treatment center in india over 11 years: case for a specialized "dual diagnosis clinic".
The research indicates that the risk factors for substance use and for substance use disorder (SUD) differ to some extent.
Her research focuses on mental health and substance use disorders in relation to recidivism among rural jail populations.
To guide this discussion, we offer an operational definition of relational trauma-based substance use disorders that includes neural and relational components.
Health at a Glance: Mental and substance use disorders in Canada.
Youth who have a first-degree relative with a substance use disorder are at greater risk for developing such a disorder themselves, and this is especially so if there is a family history of alcoholism.
Epidemiological Perspectives on Comorbidity Between Substance Use Disorders and Other Mental Disorders.
In a cross-sectional analysis, it was reported that substance use disorders associate more strongly with externalizing mental disorders or disruptive disorders such as oppositional-defiant disorder, conduct disorder, and attention deficit/hyperactivity disorder (Kessler, 2004; Hawkins, 2009).
A randomized controlled trial of fluoxetine and cognitive behavioral therapy in adolescents with major depression, behavior problems, and substance use disorders. Arch Pediatr Adolesc Med.
The two major forms of substance use disorders are abuse and dependence (American Psychiatric Association [APA], 2000).
Specific objectives included: (i) assessing the frequency and nature of previous and current comorbid substance use disorders and comorbid psychiatric illness, including mood, anxiety, psychosis, eating disorders and antisocial personality disorder; and (ii) assessing the correlates of current psychiatric comorbidities in terms of demographic data (age, gender and level of education) and substance use history (amount of heroin used per day, intravenous drug use, number of previous rehabilitation attempts, longest period abstinent from heroin and use of other drugs).

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