Is khat chewing a risk factor for acute myocardial infarction : a case-control study?
This study indicates that khat chewing is associated with AMI and is an independent dose-related risk factor for the development of myocardial infarction.
Doubling in provision of opiate substitute treatment has occurred, alongside significant improvements in the nature of this treatment. These positive changes have occurred in the direction of six out of seven of the UK national guidelines.