How to Use "abuser" with Example Sentences

1. The clinical study on cognitive impairment of ketamine abuser
2. We report a30-year-old male amphetamine abuser with acute myocardial infarction owing so acute thrombosis of the left anterior descending coronary artery and left circumflex coronary artery .
3. We report a30-year-old male amphetamine abuser with acute myocardial infarction owing so acute thrombosis of the left anterior descending coronary artery and left circumflex coronary artery .
4. Result : The HBV infection rates were 21.5 % in pethidine abuser group and 8.0 % in the control group .
5. Have you ever been afflicted with a communicable disease of public health significance or a dangerous physical or mental disorder , or ever been a drug abuser or addict ?