Eddy N B, Halbach H, Isbell H, Seevers M H
Bull World Health Organ. 1965;32(5):721-33.
It has become impossible in practice, and is scientifically unsound, to maintain a single definition for all forms of drug addiction and/or habituation. A feature common to these conditions as well as to drug abuse in general is dependence, psychic or physical or both, of the individual on a chemical agent. Therefore, better understanding should be attained by substitution of the term drug dependence of this or that type, according to the agent or class of agents involved, in discussions of these conditions, especially inter-disciplinary. Short descriptions, followed by concise listings of their characteristics, are formulated for the various types of dependence on at present widely abused major groups of substances.
实际上，为所有形式的药物成瘾和/或习惯化维持单一的定义已变得不可能，而且在科学上也是不合理的。这些情况以及一般药物滥用所共有的一个特征是个体对化学制剂产生心理、生理或两者兼具的依赖。因此，在讨论这些情况时，尤其是跨学科讨论中，根据所涉及的制剂或制剂类别，用这种或那种类型的药物依赖这一术语来替代，应能获得更好的理解。针对目前广泛滥用的主要物质类别所产生的各种类型的依赖，给出了简短描述，并简要列出了其特征。
