1. a Pharmaceutical Analysis Laboratory, Biological and Medical Research Department(MBC 03‐65) , King Faisal Specialist Hospital and Research Centre , P. O. Box 3354, Riyadh , 11211 , Saudi Arabia
2. b Pharmacokinetics and Therapeutic Drug Monitoring Laboratory, Biological and Medical Research Department , King Faisal Specialist Hospital and Research Centre , Riyadh , Saudi Arabia
3. c Department of Clinical Pharmacy, College of Pharmacy, Science & Medical Studies, Department for Women Students , King Saud University , Saudi Arabia