Background: There is ongoing interest in assessing the effectiveness of various drug control strategies, including policy intended to reduce initiation and prevalence. Compartmental models of trajectories of drug use have been developed that demonstrate that drug “systems” display...

Background: There is ongoing interest in assessing the effectiveness of various drug control strategies, including policy intended to reduce initiation and prevalence. Compartmental models of trajectories of drug use have been developed that demonstrate that drug “systems” display...

In this global age, issues that developing countries confront are widening and increasingly complex due to intricate ways in which countries are interlinked. Due to such increased interdependency, catching up process of development countries is increasingly becoming susceptible to the external...