[1] Al Azhar Univ, Fac Med, Nasr City, Cairo, Egypt
[2] Menoufia Univ, Fac Med, Menoufia, Egypt
[3] Cairo Univ, Fac Pharm, Cairo, Egypt
[4] Shevin El Kom Teaching Hosp, Shevin El Kom, Egypt
[5] Univ So Denmark, Dept Clin Pharmacol, Odense, Denmark
[6] Karolinska Inst, S-10401 Stockholm, Sweden